Recent High and Critical vulnerabilities for which exploits are available

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Over 90% of successful attacks today could have been prevented by applying a patch. In most cases, these patches were available for over a year. Applying patches is the single most effective risk mitigation strategy organizations can implement.

However, most of the published vulnerabilities are not being exploited 'in the wild'. The availability of exploit code is therefore an important factor to decide which patches should be prioritized*.

CVE Vendor Title Included CVSS V2/V3 Base Score Description
CVE-2020-1472 Microsoft Netlogon Elevation of Privilege Vulnerability 16/09/2020 10 An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC), aka 'Netlogon Elevation of Privilege Vulnerability'.
CVE 2020-1350 Microsoft Windows DNS Server Remote Code Execution Vulnerability 16/07/2020 10 A remote code execution vulnerability exists in Windows Domain Name System servers when they fail to properly handle requests. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the Local System Account. Windows servers that are configured as DNS servers are at risk from this vulnerability. To exploit the vulnerability, an unauthenticated attacker could send malicious requests to a Windows DNS server.
CVE-2020-12388 Mozilla Firefox Default Content Process DACL Sandbox Escape 26/06/2020 10 The Firefox content processes did not sufficiently lockdown access control which could result in a sandbox escape. *Note: this issue only affects Firefox on Windows operating systems.*. This vulnerability affects Firefox ESR versions lower than 68.8 and Firefox versions lower than 76.
CVE-2020-3765? Adobe Adobe After Effects Out-of-Bounds Write Vulnerability (APSB20-09)? 21/05/2020 10 Adobe After Effects have an out-of-bounds write vulnerability. Successful exploitation could lead to arbitrary code execution.?
CVE-2020-0609 Microsoft Windows Remote Desktop Gateway (RD Gateway) Remote Code Execution Vulnerability 21/05/2020 10 A remote code execution vulnerability exists in Windows Remote Desktop Gateway (RD Gateway) when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests. This vulnerability is pre-authentication and requires no user interaction. An attacker who successfully exploited this vulnerability could execute arbitrary code on the target system.
CVE-2020-0796 Microsoft Microsoft Windows SMBv3 Client/Server Remote Code Execution Vulnerability 21/05/2020 10 A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests. An attacker who successfully exploited the vulnerability could gain the ability to execute code on the target server or client.
CVE-2021-17095 Microsoft Hyper-V Remote Code Execution Vulnerability 26/02/2021 9.9 A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a guest operating system. To exploit this vulnerability, an attacker could run a specially crafted application on a Hyper-V guest that could cause the Hyper-V host operating system to execute arbitrary code when it fails to properly validate vSMB packet data.
CVE-2021-28480 Microsoft Microsoft Exchange Server Remote Code Execution Vulnerability 20/05/2021 9.8 Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28481, CVE-2021-28482, CVE-2021-28483.
CVE-2020-27955 Git/GitHub Git Large File Storage / Git LFS (git-lfs) - Remote Code Execution (RCE) 09/12/2020 9.8 Git LFS 2.12.0 allows Remote Code Execution.
CVE-2020-17051 Microsoft Windows Network File System Remote Code Execution Vulnerability 13/11/2020 9.8 Windows Network File System Remote Code Execution Vulnerability
CVE-2020-16898 Microsoft Windows TCP/IP Remote Code Execution Vulnerability 23/10/2020 9.8 A remote code execution vulnerability exists when the Windows TCP/IP stack improperly handles ICMPv6 Router Advertisement packets, aka 'Windows TCP/IP Remote Code Execution Vulnerability'.
CVE-2019-0708 Microsoft Remote Desktop Services Remote Code Execution Vulnerability 24/09/2020 9.8 A remote code execution vulnerability exists in Remote Desktop Services formerly known as Terminal Services when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests, aka 'Remote Desktop Services Remote Code Execution Vulnerability
CVE-2019-19781 Citrix Vulnerability in Citrix Application Delivery Controller, Citrix Gateway, and Citrix SD-WAN WANOP appliance 24/09/2020 9.8 An issue was discovered in Citrix Application Delivery Controller (ADC) and Gateway 10.5, 11.1, 12.0, 12.1, and 13.0. They allow Directory Traversal.
CVE-2019-1181 Microsoft Remote Desktop Services Remote Code Execution Vulnerability 24/09/2020 9.8 "A remote code execution vulnerability exists in Remote Desktop Services (formerly known as Terminal Services) when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests, aka ""Remote Desktop Services Remote Code Execution Vulnerability"". This CVE ID is unique from CVE-2019-1182, CVE-2019-1222, CVE-2019-1226."
CVE-2019-1182 Microsoft Remote Desktop Services Remote Code Execution Vulnerability 24/09/2020 9.8 "A remote code execution vulnerability exists in Remote Desktop Services (formerly known as Terminal Services) when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests, aka ""Remote Desktop Services Remote Code Execution Vulnerability"". This CVE ID is unique from CVE-2019-1181, CVE-2019-1222, CVE-2019-1226."
CVE-2018-4878 Adobe Adobe Flash Player Use After Free Remote Code Execution Vulnerability 21/05/2020 9.8 A use-after-free vulnerability was discovered in Adobe Flash Player before 28.0.0.161. This vulnerability occurs due to a dangling pointer in the Primetime SDK related to media player handling of listener objects. A successful attack can lead to arbitrary code execution.
CVE-2019-0604 Microsoft Microsoft Sharepoint Remote Code Execution Vulnerability 21/05/2020 9.8 A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package
CVE 2019-16452 Adobe Adobe User After Free Arbitrary Code Execution Vulnerability 28/05/2020 9.8 Adobe Acrobat and Reader versions , 2019.021.20056 and earlier, 2017.011.30152 and earlier, 2017.011.30155 and earlier version, 2017.011.30152 and earlier, and 2015.006.30505 and earlier have an use after free vulnerability. Successful exploitation could lead to arbitrary code execution .
CVE-2020-6457 Google Use after free in speech recognizer in Google Chrome 29/01/2021 9.6 Use after free in speech recognizer in Google Chrome prior to 81.0.4044.113 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page.
CVE-2021-26855 Microsoft Microsoft Exchange Server Remote Code Execution Vulnerability 03/03/2021 9.1 Server-side request forgery (SSRF) vulnerability in Exchange which allows the attacker to send arbitrary HTTP requests and authenticate as the Exchange server. Check for details here: https://www.microsoft.com/security/blog/2021/03/02/hafnium-targeting-exchange-servers/
CVE-2021-30563 Google Type Confusion in V8 16/07/2021 9 https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html
CVE-2020-0665 Microsoft Microsoft Active Directory Privilege Escalation Vulnerability 21/05/2020 9 The vulnerability exists in Active Directory Forest trust due to a default setting that lets an attacker in the trusting forest request delegation of a TGT for an identity from the trusted forest. The vulnerability allows a remote user to escalate privileges on the system. A remote user can gain elevated privileges on the target system.?
CVE-2021-40444 Microsoft Microsoft MSHTML Remote Code Execution Vulnerability 24/09/2021 8.8 An attacker could craft a malicious ActiveX control to be used by a Microsoft Office document that hosts the browser rendering engine. The attacker would then have to convince the user to open the malicious document. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
CVE-2021-34527 Microsoft Windows Print Spooler Remote Code Execution Vulnerability 07/07/2021 8.8 "A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights."
CVE-2021-21166 Google Heap corruption via a crafted HTML page in Google Chrome prior to 89.0.4389.72 04/05/2021 8.8 Data race in audio in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVE-2020-16898 Microsoft Windows TCP/IP Remote Code Execution Vulnerability 04/05/2021 8.8 A remote code execution vulnerability exists when the Windows TCP/IP stack improperly handles ICMPv6 Router Advertisement packets. An attacker who successfully exploited this vulnerability could gain the ability to execute code on the target server or client. To exploit this vulnerability, an attacker would have to send specially crafted ICMPv6 Router Advertisement packets to a remote Windows computer. The update addresses the vulnerability by correcting how the Windows TCP/IP stack handles ICMPv6 Router Advertisement packets.
CVE-2021-26411 Microsoft Internet Explorer Memory Corruption Vulnerability 17/03/2021 8.8 An attacker could host a specially crafted website designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. The attacker could also take advantage of compromised websites, or websites that accept or host user-provided content or advertisements, by adding specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force a user to view the attacker-controlled content. Instead, an attacker would have to convince a user to take action, typically by an enticement in an email or instant message, or by getting the user to open an attachment sent through email.
CVE-2021-21193 Google Use after free in Blink in Google Chrome vulnerability 17/03/2021 8.8 Use after free in Blink in Google Chrome prior to 89.0.4389.90 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVE-2021-21017 Adobe Adobe Reader Heap-based buffer overflow vulnerability 19/02/2021 8.8 "Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a heap-based buffer overflow vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
CVE-2020-3495 Cisco Cisco Jabber for Windows Message Handling Arbitrary Code Execution Vulnerability 11/09/2020 8.8 A vulnerability in Cisco Jabber for Windows could allow an authenticated, remote attacker to execute arbitrary code. The vulnerability is due to improper validation of message contents. An attacker could exploit this vulnerability by sending specially crafted Extensible Messaging and Presence Protocol (XMPP) messages to the affected software. A successful exploit could allow the attacker to cause the application to execute arbitrary programs on the targeted system with the privileges of the user account that is running the Cisco Jabber client software, possibly resulting in arbitrary code execution. CVE-2020-0688
CVE-2017-0144 Microsoft Windows SMB Remote Code Execution Vulnerability 24/09/2020 8.1 "The SMBv1 server in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows remote attackers to execute arbitrary code via crafted packets, aka ""Windows SMB Remote Code Execution Vulnerability."" This vulnerability is different from those described in CVE-2017-0143, CVE-2017-0145, CVE-2017-0146, and CVE-2017-0148."
CVE-2021-21148 Google Heap buffer overflow in V8 10/02/2021 8.0 "Heap buffer overflow vulnerability in V8, Google Chrome?s open-source JavaScript and WebAssembly engine. Fixed by Google with an update to the Stable channel to version 88.0.4324.150. NOTE: no CVSS score has been assigned yet for this vulnerability, although Google has labeled it as ""high severity"". We have provisionally set a score of 8.0 to simplify prioritization. "
CVE-2021-40449 Microsoft Win32k Elevation of Privilege Vulnerability 13/10/2021 7.8 Win32k Elevation of Privilege Vulnerability. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-40449
CVE-2021-33771 Microsoft Windows Kernel Elevation of Privilege Vulnerability 16/07/2021 7.8 Windows Kernel Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-31979, CVE-2021-34514.
CVE-2021-26868 Microsoft Windows Graphics Component Elevation of Privilege Vulnerability 07/07/2021 7.8 Windows Graphics Component Elevation of Privilege Vulnerability
CVE-2021-31956 Microsoft Windows NTFS Elevation of Privilege Vulnerability 09/06/2021 7.8 To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. Additionally, an attacker could convince a local user to open a malicious file. The attacker would have to convince the user to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.
CVE-2021-31167 Microsoft Windows Container Manager Service Elevation of Privilege Vulnerability 20/05/2021 7.8 Windows Container Manager Service Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-31165, CVE-2021-31168, CVE-2021-31169, CVE-2021-31208.
CVE-2021-28310 Microsoft Win32k Elevation of Privilege Vulnerability 04/05/2021 7.8 Win32k Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-27072.
CVE-2021-1732 Microsoft Windows Win32k Elevation of Privilege Vulnerability 12/02/2021 7.8 https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-1732. For a technical analysis, you can visit https://attackerkb.com/topics/7eGGM4Xknz/cve-2021-1732
CVE-2021-26857 Microsoft Microsoft Exchange Server Remote Code Execution Vulnerability 03/03/2021 7.8 Insecure deserialization vulnerability in the Unified Messaging service. Insecure deserialization is where untrusted user-controllable data is deserialized by a program. Exploiting this vulnerability gives attackers the ability to run code as SYSTEM on the Exchange server. This requires administrator permission or another vulnerability to exploit. For details check here: https://www.microsoft.com/security/blog/2021/03/02/hafnium-targeting-exchange-servers/
CVE-2021-26858 Microsoft Microsoft Exchange Server Remote Code Execution Vulnerability 03/03/2021 7.8 Post-authentication arbitrary file write vulnerability in Exchange. If attackers can authenticate with the Exchange server then they can use this vulnerability to write a file to any path on the server. They can authenticate by exploiting the CVE-2021-26855 SSRF vulnerability or by compromising a legitimate admin?s credentials. For details check here: https://www.microsoft.com/security/blog/2021/03/02/hafnium-targeting-exchange-servers/
CVE-2021-27065 Microsoft Microsoft Exchange Server Remote Code Execution Vulnerability 03/03/2021 7.8 Post-authentication arbitrary file write vulnerability in Exchange. If attackers can authenticate with the Exchange server then they can use this vulnerability to write a file to any path on the server. They can authenticate by exploiting the CVE-2021-26855 SSRF vulnerability or by compromising a legitimate admin?s credentials. For details check here: https://www.microsoft.com/security/blog/2021/03/02/hafnium-targeting-exchange-servers/
CVE-2020-1170 Microsoft Cloud Filter Arbitrary File Creation / Privilege Escalation 29/01/2021 7.8 An elevation of privilege vulnerability exists in Windows Defender that leads arbitrary file deletion on the system.To exploit the vulnerability, an attacker would first have to log on to the system, aka 'Microsoft Windows Defender Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1163.
CVE-2020-17136 Microsoft Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability 29/01/2021 7.8 Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
CVE-2021-1647 Microsoft Microsoft Defender Remote Code Execution Vulnerability 14/01/2021 7.8 Remote code execution (RCE) bug that allows threat actors to execute code on vulnerable devices where Defender is installed, without user interaction.
CVE-2020-1054 Microsoft Win32k Elevation of Privilege Vulnerability 28/09/2020 7.8 An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1143.
CVE-2019-0808 Microsoft Win32k Elevation of Privilege Vulnerability 28/09/2020 7.8 An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0797.
CVE-2020-0986 Microsoft Windows Kernel Elevation of Privilege Vulnerability 11/09/2020 7.8 An elevation of privilege vulnerability exists when the Windows kernel fails to properly handle objects in memory, aka 'Windows Kernel Elevation of Privilege Vulnerability'.
CVE-2020-17087 Microsoft Windows Kernel Local Elevation of Privilege Vulnerability 13/11/2020 7.8 Windows Kernel Local Elevation of Privilege Vulnerability
CVE-2020-0642 Microsoft Microsoft Windows Win32k Privilege Escalation 04/08/2020 7.8 An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'.
CVE-2020-1048 Microsoft Windows Print Spooler Elevation of Privilege Vulnerability 26/06/2020 7.8 "An elevation of privilege vulnerability exists when the Windows Print Spooler service improperly allows arbitrary writing to the file system. An attacker who successfully exploited this vulnerability could run arbitrary code with elevated system privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted script or application."
?CVE-2020-0787 Microsoft Microsoft Windows Background Intelligent Transfer Service Elevation of Privilege Vulnerability 21/05/2020 7.8 An elevation of privilege vulnerability exists when the Windows Background Intelligent Transfer Service (BITS) improperly handles symbolic links. An attacker who successfully exploited this vulnerability could overwrite a targeted file leading to an elevated status.
CVE-2021-33742 Microsoft Windows MSHTML Platform Remote Code Execution Vulnerability 09/06/2021 7.5 Windows MSHTML Platform Remote Code Execution Vulnerability
CVE-2020-1206 Microsoft Microsoft Windows SMBv3 Client/Server Remote Code Execution Vulnerability 26/06/2020 7.5 An information disclosure vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user?s system. To exploit the vulnerability against a server, an unauthenticated attacker could send a specially crafted packet to a targeted SMBv3 server. To exploit the vulnerability against a client, an unauthenticated attacker would need to configure a malicious SMBv3 server and convince a user to connect to it.
CVE-2021-26411 Microsoft Internet Explorer Memory Corruption Vulnerability 04/05/2021 7.5 An attacker could host a specially crafted website designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. The attacker could also take advantage of compromised websites, or websites that accept or host user-provided content or advertisements, by adding specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force a user to view the attacker-controlled content. Instead, an attacker would have to convince a user to take action, typically by an enticement in an email or instant message, or by getting the user to open an attachment sent through email.
?CVE-2020-0674 Microsoft Microsoft Scripting Engine Memory Corruption Vulnerability 21/05/2020 7.5 "A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. An attacker could then install programs; view, change, or delete data or create new accounts with full user rights."
?CVE-2020-3941 VMWare VMWare Privilege Escalation Vulnerability 21/05/2020 7.2 A vulnerability exists in VMware Tools for windows, which may allow for privilege escalation in the Virtual Machine where Tools is installed. A malicious actor on the guest VM might exploit the race condition and escalate their privileges on a Windows VM.?
CVE-2020-15999 Google Heap buffer overflow in Freetype in Google Chrome Vulnerability 13/11/2020 6.5 "Heap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. NOTE: This vulnerability has been added, despite having a ""Medium"" score, due to is active exploitation in the wild, in conjunction with Vulnerability CVE-2020-17087."

*This list has been compiled using different sources, and it focuses on vulnerabilities published in 2020, affecting Windows Operating Systems and some commonly used applications for Windows, with a CVS Score of 7.0 or higher. This is not an exhaustive list and it is provided as is, to help in prioritization efforts. It is not intended to be a replacement for any other source of vulnerability information.

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