CISA Known Exploited Vulnerabilities (KEV)
CISA's Known Exploited Vulnerabilities (KEV) catalog lists vulnerabilities actively used in real-world attacks. CVEFeed.io tracks the latest additions so you can prioritize remediation as new entries are published.
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
8.5
CVE-2021-27059 - Microsoft Office Remote Code Execution Vulnerability -
Action Due Nov 17, 2021 Target Vendor : Microsoft
Description :Microsoft Office 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-2021-27059
7.6
CVE-2019-1367 - 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 in how the scripting engine handles objects in memory. Successful exploitation allows for 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-2019-1367
9.3
CVE-2017-0199 - Microsoft Office and WordPad Remote Code Execution Vulnerability -
Action Due May 03, 2022 Target Vendor : Microsoft
Description :Microsoft Office and WordPad contain an unspecified vulnerability due to the way the applications parse specially crafted files. Successful exploitation 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-2017-0199
8.8
CVE-2020-1380 - 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-2020-1380
7.6
CVE-2020-0968 - 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 how the Scripting Engine handles objects in memory, leading to 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-2020-0968
10.0
CVE-2021-27104 - Accellion FTA OS Command Injection Vulnerability -
Action Due Nov 17, 2021 Target Vendor : Accellion
Description :Accellion FTA contains an OS command injection vulnerability exploited via a crafted POST request to various admin endpoints.
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-2021-27104
9.8
CVE-2020-17530 - Apache Struts Remote Code Execution Vulnerability -
Action Due May 03, 2022 Target Vendor : Apache
Description :Forced Object-Graph Navigation Language (OGNL) evaluation in Apache Struts, when evaluated on raw user input in tag attributes, can lead to 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-2020-17530
10.0
CVE-2020-1472 - Microsoft Netlogon Privilege Escalation Vulnerability -
Action Due May 03, 2022 Target Vendor : Microsoft
Description :Microsoft's Netlogon Remote Protocol (MS-NRPC) contains a privilege escalation vulnerability when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller. An attacker who successfully exploits the vulnerability could run a specially crafted application on a device on the network. The vulnerability is also known under the moniker of Zerologon.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Known Detected Nov 03, 2021
Notes :Reference CISA's ED 20-04 (https://www.cisa.gov/news-events/directives/ed-20-04-mitigate-netlogon-elevation-privilege-vulnerability-august-2020-patch-tuesday) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 20-04. https://nvd.nist.gov/vuln/detail/CVE-2020-1472
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
7.8
CVE-2020-9859 - Apple Multiple Products Code Execution Vulnerability -
Action Due May 03, 2022 Target Vendor : Apple
Description :Apple iOS, iPadOS, macOS, watchOS, and tvOS contain an unspecified vulnerability that may allow an application to execute code with kernel privileges.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2020-9859
5.5
CVE-2021-27562 - Arm Trusted Firmware Out-of-Bounds Write Vulnerability -
Action Due Nov 17, 2021 Target Vendor : Arm
Description :Arm Trusted Firmware contains an out-of-bounds write vulnerability allowing the non-secure (NS) world to trigger a system halt, overwrite secure data, or print out secure data when calling secure functions under the non-secure processing environment (NSPE) handler mode. This vulnerability affects Yealink Device Management servers.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2021-27562
9.8
CVE-2019-11580 - Atlassian Crowd and Crowd Data Center Remote Code Execution Vulnerability -
Action Due May 03, 2022 Target Vendor : Atlassian
Description :Atlassian Crowd and Crowd Data Center contain a remote code execution vulnerability resulting from a pdkinstall development plugin being incorrectly enabled in release builds.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Known Detected Feb 26, 2026
Notes :https://nvd.nist.gov/vuln/detail/CVE-2019-11580
8.6
CVE-2020-3569 - Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability -
Action Due May 03, 2022 Target Vendor : Cisco
Description :Cisco IOS XR Distance Vector Multicast Routing Protocol (DVMRP) incorrectly handles Internet Group Management Protocol (IGMP) packets. Exploitation could allow an unauthenticated, remote attacker to immediately crash the IGMP process or make it consume available memory and eventually crash.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2020-3569
6.5
CVE-2020-8193 - Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability -
Action Due May 03, 2022 Target Vendor : Citrix
Description :Citrix ADC, Citrix Gateway, and multiple Citrix SD-WAN WANOP appliance models contain an authorization bypass vulnerability that may allow unauthenticated access to certain URL endpoints. The attacker must have access to the NetScaler IP (NSIP) in order to perform exploitation.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2020-8193
7.8
CVE-2021-27102 - Accellion FTA OS Command Injection Vulnerability -
Action Due Nov 17, 2021 Target Vendor : Accellion
Description :Accellion FTA contains an OS command injection vulnerability exploited via a local web service call.
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-2021-27102
9.8
CVE-2021-27101 - Accellion FTA SQL Injection Vulnerability -
Action Due Nov 17, 2021 Target Vendor : Accellion
Description :Accellion FTA contains a SQL injection vulnerability exploited via a crafted host header in a request to document_root.html.
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-2021-27101
9.8
CVE-2021-27103 - Accellion FTA Server-Side Request Forgery (SSRF) Vulnerability -
Action Due Nov 17, 2021 Target Vendor : Accellion
Description :Accellion FTA contains a server-side request forgery (SSRF) vulnerability exploited via a crafted POST request to wmProgressstat.html.
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-2021-27103
8.1
CVE-2020-0601 - Microsoft Windows CryptoAPI Spoofing Vulnerability -
Action Due May 03, 2022 Target Vendor : Microsoft
Description :Microsoft Windows CryptoAPI (Crypt32.dll) contains a spoofing vulnerability in the way it validates Elliptic Curve Cryptography (ECC) certificates. An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making it appear the file was from a trusted, legitimate source. A successful exploit could also allow the attacker to conduct man-in-the-middle attacks and decrypt confidential information on user connections to the affected software. The vulnerability is also known under the moniker of CurveBall.
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :Reference CISA's ED 20-02 (https://www.cisa.gov/news-events/directives/ed-20-02-mitigate-windows-vulnerabilities-january-2020-patch-tuesday) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 20-02. https://nvd.nist.gov/vuln/detail/CVE-2020-0601
7.8
CVE-2020-0041 - Android Kernel Out-of-Bounds Write Vulnerability -
Action Due May 03, 2022 Target Vendor : Android
Description :Android Kernel binder_transaction of binder.c contains an out-of-bounds write vulnerability due to an incorrect bounds check that could allow for local privilege escalation. This vulnerability was observed chained with CVE-2019-2215 and CVE-2020-0069 under exploit chain "AbstractEmu."
Action :Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://nvd.nist.gov/vuln/detail/CVE-2020-0041