CISA Known Exploited Vulnerabilities (KEV)
CISA's Known Exploited Vulnerabilities (KEV) catalog is the authoritative list of security flaws that have been confirmed exploited in real-world attacks. CVEFeed.io mirrors every entry, joins it to full CVE and severity data, and tracks new additions so you can prioritize remediation the moment a vulnerability enters the catalog.
Because each KEV entry carries direct evidence of active exploitation, the catalog is one of the highest-signal inputs for risk-based patch management — start here before triaging vulnerabilities that are only theoretically exploitable.
9.8
CVE-2018-4878 - Adobe Flash Player Use-After-Free Vulnerability -
Action Due May 03, 2022 Target Vendor : Adobe
Description :Adobe Flash Player contains a use-after-free vulnerability that could allow for code execution.
Action :The impacted product is end-of-life and should be disconnected if still in use.
Known To Be Used in Ransomware Campaigns? : Known Detected Nov 03, 2021
Notes :https://nvd.nist.gov/vuln/detail/CVE-2018-4878
9.8
CVE-2020-8644 - PlaySMS Server-Side Template Injection Vulnerability -
Action Due May 03, 2022 Target Vendor : PlaySMS
Description :PlaySMS contains a server-side template injection vulnerability that allows for remote code execution.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2020-8644
8.1
CVE-2020-6820 - Mozilla Firefox And Thunderbird Use-After-Free Vulnerability -
Action Due May 03, 2022 Target Vendor : Mozilla
Description :Mozilla Firefox and Thunderbird contain a race condition vulnerability when handling a ReadableStream under certain conditions. The race condition creates a use-after-free vulnerability, causing unspecified impacts.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2020-6820
10.0
CVE-2021-34473 - Microsoft Exchange Server Remote Code Execution Vulnerability -
Action Due Nov 17, 2021 Target Vendor : Microsoft
Description :Microsoft Exchange Server contains an unspecified vulnerability that allows for remote code execution.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Known Detected Nov 03, 2021
Notes :https://nvd.nist.gov/vuln/detail/CVE-2021-34473
9.6
CVE-2020-15999 - Google Chrome FreeType Heap Buffer Overflow Vulnerability -
Action Due Nov 17, 2021 Target Vendor : Google
Description :Google Chrome uses FreeType, an open-source software library to render fonts, which contains a heap buffer overflow vulnerability in the function Load_SBit_Png when processing PNG images embedded into fonts. This vulnerability is part of an exploit chain with CVE-2020-17087 on Windows and CVE-2020-16010 on Android.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2020-15999
8.8
CVE-2021-21166 - Google Chromium Race Condition Vulnerability -
Action Due Nov 17, 2021 Target Vendor : Google
Description :Google Chromium contains a race condition vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2021-21166
9.6
CVE-2020-16017 - Google Chrome Use-After-Free Vulnerability -
Action Due May 03, 2022 Target Vendor : Google
Description :Google Chrome contains a use-after-free vulnerability that allows a remote attacker, who has compromised the renderer process, to potentially perform a sandbox escape via a crafted HTML page.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2020-16017
7.8
CVE-2020-1464 - Microsoft Windows Spoofing Vulnerability -
Action Due May 03, 2022 Target Vendor : Microsoft
Description :Microsoft Windows contains a spoofing vulnerability when Windows incorrectly validates file signatures, allowing an attacker to bypass security features and load improperly signed files.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2020-1464
7.8
CVE-2021-1732 - Microsoft Win32k Privilege Escalation Vulnerability -
Action Due Nov 17, 2021 Target Vendor : Microsoft
Description :Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Known Detected Nov 03, 2021
Notes :https://nvd.nist.gov/vuln/detail/CVE-2021-1732
7.8
CVE-2016-0167 - Microsoft Win32k Privilege Escalation Vulnerability -
Action Due May 03, 2022 Target Vendor : Microsoft
Description :Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation via a crafted application
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Known Detected Nov 03, 2021
Notes :https://nvd.nist.gov/vuln/detail/CVE-2016-0167
7.8
CVE-2021-28310 - Microsoft Win32k Privilege Escalation Vulnerability -
Action Due Nov 17, 2021 Target Vendor : Microsoft
Description :Microsoft Windows Win32k contains an unspecified vulnerability that allows for privilege escalation.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2021-28310
9.0
CVE-2020-10221 - rConfig OS Command Injection Vulnerability -
Action Due May 03, 2022 Target Vendor : rConfig
Description :rConfig lib/ajaxHandlers/ajaxAddTemplate.php contains an OS command injection vulnerability that allows remote attackers to execute OS commands via shell metacharacters in the fileName POST parameter.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2020-10221
9.8
CVE-2021-26855 - Microsoft Exchange Server Remote Code Execution Vulnerability -
Action Due May 03, 2022 Target Vendor : Microsoft
Description :Microsoft Exchange Server contains an unspecified vulnerability that allows for remote code execution. This vulnerability is part of the ProxyLogon exploit chain.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Known Detected Nov 03, 2021
Notes :Reference CISA's ED 21-02 (https://www.cisa.gov/news-events/directives/ed-21-02-mitigate-microsoft-exchange-premises-product-vulnerabilities) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 21-02. https://nvd.nist.gov/vuln/detail/CVE-2021-26855
7.6
CVE-2019-1429 - Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability -
Action Due May 03, 2022 Target Vendor : Microsoft
Description :Microsoft Internet Explorer contains a memory corruption vulnerability which can allow for remote code execution in the context of the current user.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2019-1429
10.0
CVE-2021-35395 - Realtek AP-Router SDK Buffer Overflow Vulnerability -
Action Due Nov 17, 2021 Target Vendor : Realtek
Description :Realtek AP-Router SDK HTTP web server boa contains a buffer overflow vulnerability due to unsafe copies of some overly long parameters submitted in the form that lead to denial-of-service (DoS).
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2021-35395
10.0
CVE-2010-5326 - SAP NetWeaver Remote Code Execution Vulnerability -
Action Due May 03, 2022 Target Vendor : SAP
Description :SAP NetWeaver Application Server Java Platforms Invoker Servlet does not require authentication, allowing for remote code execution via a HTTP or HTTPS request.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2010-5326
7.6
CVE-2020-0674 - Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability -
Action Due May 03, 2022 Target Vendor : Microsoft
Description :Microsoft Internet Explorer contains a memory corruption vulnerability due to the way the Scripting Engine handles objects in memory. Successful exploitation could allow remote code execution in the context of the current user.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2020-0674
9.3
CVE-2017-11882 - Microsoft Office Memory Corruption Vulnerability -
Action Due May 03, 2022 Target Vendor : Microsoft
Description :Microsoft Office contains a memory corruption vulnerability that allows remote code execution in the context of the current user.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Known Detected Nov 03, 2021
Notes :https://nvd.nist.gov/vuln/detail/CVE-2017-11882
9.3
CVE-2019-0541 - Microsoft MSHTML Remote Code Execution Vulnerability -
Action Due May 03, 2022 Target Vendor : Microsoft
Description :Microsoft MSHTML engine contains an improper input validation vulnerability that allows for remote code execution vulnerability.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2019-0541
8.8
CVE-2021-27085 - Microsoft Internet Explorer Remote Code Execution Vulnerability -
Action Due Nov 17, 2021 Target Vendor : Microsoft
Description :Microsoft Internet Explorer contains an unspecified vulnerability that allows for remote code execution.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2021-27085