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About the KEV Catalog For the benefit of the cybersecurity community and network defenders — and to help every organization better manage vulnerabilities and keep pace with threat activity — CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild. Organizations should use the KEV catalog as an input to their vulnerability management prioritization framework. Per Binding Operational Directive 22-01, all federal civilian executive branch (FCEB) agencies are required to remediate KEV catalog vulnerabilities by their listed due dates. CISA strongly recommends all organizations — including private sector entities — prioritize remediation of KEV catalog vulnerabilities. View the full KEV catalog on CISA.gov →
Total KEVs
1,721
in CISA catalog
Ransomware-Linked
360
21% of catalog
Added Last 30 Days
46
92 in last 90 days
Latest Addition
2026-09-22
most recent entry
Tracked Vendors
20+
top 20 shown

Top Vendors

KEV count 21%+ ransomware-linked 42%+ ransomware-linked N RW · %Ransomware-linked share

Share of each bar's KEVs linked to ransomware. Thresholds track the catalog average of 20.9%, so they stay meaningful as it grows. Bars under 5 KEVs are left uncoloured — too few to rate a share.

388
117 RW · 30%
99
7 RW · 7%
94
81
11 RW · 14%
75
46
13 RW · 28%
40
8 RW · 20%
35
12 RW · 34%
31
2 RW · 6%
30
14 RW · 47%
26
9 RW · 35%
26
2 RW · 8%
24
7 RW · 29%
19
13 RW · 68%
19
6 RW · 32%
17
15
6 RW · 40%
15
SAP
14
3 RW · 21%
13
1 RW · 8%

Top Products

KEV count 21%+ ransomware-linked 42%+ ransomware-linked N RW · %Ransomware-linked share

Share of each bar's KEVs linked to ransomware. Thresholds track the catalog average of 20.9%, so they stay meaningful as it grows. Bars under 5 KEVs are left uncoloured — too few to rate a share.

Windows · Microsoft
174
49 RW · 28%
Multiple Products · Apple
53
Chromium V8 · Google
41
Internet Explorer · Microsoft
36
6 RW · 17%
Flash Player · Adobe
33
5 RW · 15%
Kernel · Linux
31
2 RW · 6%
Office · Microsoft
29
3 RW · 10%
Win32k · Microsoft
25
11 RW · 44%
Exchange Server · Microsoft
17
13 RW · 76%
Zimbra Collaboration Suite (ZCS) · Synacor
17
5 RW · 29%
ColdFusion · Adobe
16
3 RW · 19%
SharePoint · Microsoft
14
8 RW · 57%
IOS and IOS XE Software · Cisco
14
Acrobat and Reader · Adobe
13
1 RW · 8%
Mobile Devices · Samsung
13
PAN-OS · Palo Alto Networks
12
6 RW · 50%
WebLogic Server · Oracle
12
2 RW · 17%
iOS, iPadOS, and macOS · Apple
11
Multiple Chipsets · Qualcomm
11
NetWeaver · SAP
10
2 RW · 20%
1,721 entries
CVE Vendor Product Vulnerability CVSS Added Due per BOD 22-01 Ransomware
CVE-2019-11634 Citrix Workspace Application and Receiver for Windows Citrix Workspace Application and Receiver for Windows Remote Code Execution Vulnerability Citrix Workspace Application and Receiver for Windows contains remote code execution vulnerability resulting from local drive access preferences not being enforced into the clients' local drives. 9.8 CISA 2021-11-03 2022-05-03 Known
CVE-2019-19781 Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution Vulnerability Citrix ADC, Citrix Gateway, and multiple Citrix SD-WAN WANOP appliance models contain an unspecified vulnerability that could allow an unauthenticated attacker to perform code execution. 9.8 CISA 2021-11-03 2022-05-03 Known
CVE-2020-8196 Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability Citrix ADC, Citrix Gateway, and multiple Citrix SD-WAN WANOP appliance models contain an information disclosure vulnerability. 4.3 CISA 2021-11-03 2022-05-03 Unknown
CVE-2020-8195 Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability Citrix ADC, Citrix Gateway, and multiple Citrix SD-WAN WANOP appliance models contain an information disclosure vulnerability. 6.5 CISA 2021-11-03 2022-05-03 Unknown
CVE-2020-8193 Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability 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. 6.5 CISA 2021-11-03 2022-05-03 Unknown
CVE-2019-13608 Citrix StoreFront Server Citrix StoreFront Server XML External Entity (XXE) Processing Vulnerability Citrix StoreFront Server contains an XML External Entity (XXE) processing vulnerability that may allow an unauthenticated attacker to retrieve potentially sensitive information. 7.5 CISA 2021-11-03 2022-05-03 Known
CVE-2018-0296 Cisco Adaptive Security Appliance (ASA) Cisco Adaptive Security Appliance (ASA) Denial-of-Service Vulnerability Cisco Adaptive Security Appliance (ASA) contains an improper input validation vulnerability with HTTP URLs. Exploitation could allow an attacker to cause a denial-of-service (DoS) condition or information disclosure. 7.5 CISA 2021-11-03 2022-05-03 Unknown
CVE-2019-1653 Cisco Small Business RV320 and RV325 Routers Cisco Small Business RV320 and RV325 Routers Information Disclosure Vulnerability Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers contain improper access controls for URLs. Exploitation could allow an attacker to download the router configuration or detailed diagnostic information. 7.5 CNA 2021-11-03 2022-05-03 Unknown
CVE-2020-3161 Cisco Cisco IP Phones Cisco IP Phones Web Server Remote Code Execution and Denial-of-Service Vulnerability Cisco IP Phones contain an improper input validation vulnerability for HTTP requests. Exploitation could allow an attacker to execute code remotely with root privileges or cause a denial-of-service (DoS) condition. 9.8 CNA 2021-11-03 2022-05-03 Unknown
CVE-2020-3569 Cisco IOS XR Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability 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. 8.6 CNA 2021-11-03 2022-05-03 Unknown
CVE-2020-3566 Cisco IOS XR Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability 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. 8.6 CNA 2021-11-03 2022-05-03 Unknown
CVE-2020-3118 Cisco IOS XR Cisco IOS XR Software Discovery Protocol Format String Vulnerability Cisco IOS XR improperly validates string input from certain fields in Cisco Discovery Protocol messages. Exploitation could allow an unauthenticated, adjacent attacker to execute code with administrative privileges or cause a reload on an affected device. 8.8 CNA 2021-11-03 2022-05-03 Unknown
CVE-2018-0171 Cisco IOS and IOS XE Cisco IOS and IOS XE Software Smart Install Remote Code Execution Vulnerability Cisco IOS and IOS XE Software improperly validates packet data, allowing an unauthenticated, remote attacker to trigger a reload of an affected device, cause a denial-of-service (DoS) condition, or perform code execution on the affected device. 7.5 CISA 2021-11-03 2022-05-03 Unknown
CVE-2021-1498 Cisco HyperFlex HX Cisco HyperFlex HX Data Platform Command Injection Vulnerability Cisco HyperFlex HX Installer Virtual Machine contains an insufficient input validation vulnerability which could allow an attacker to execute commands on an affected device as the tomcat8 user. 9.8 CNA 2021-11-03 2021-11-17 Unknown
CVE-2021-1497 Cisco HyperFlex HX Cisco HyperFlex HX Installer Virtual Machine Command Injection Vulnerability Cisco HyperFlex HX Installer Virtual Machine contains an insufficient input validation vulnerability which could allow an attacker to execute commands on an affected device as the root user. 9.8 CNA 2021-11-03 2021-11-17 Unknown
CVE-2020-3580 Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) Cisco ASA and FTD Cross-Site Scripting (XSS) Vulnerability Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an insufficient input validation vulnerability for user-supplied input by the web services interface. Successful exploitation could allow an attacker to perform cross-site scripting (XSS) in the context of the interface or access sensitive browser-based information. 6.1 CNA 2021-11-03 2022-05-03 Known
CVE-2020-3452 Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) Cisco ASA and FTD Read-Only Path Traversal Vulnerability Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an improper input validation vulnerability when HTTP requests process URLs. An attacker could exploit this vulnerability by sending a crafted HTTP request containing directory traversal character sequences to an affected device. A successful exploit could allow the attacker to view arbitrary files within the web services file system on the targeted device. 7.5 CNA 2021-11-03 2022-05-03 Unknown
CVE-2021-42258 BQE BillQuick Web Suite BQE BillQuick Web Suite SQL Injection Vulnerability BQE BillQuick Web Suite contains an SQL injection vulnerability when accessing the username parameter that may allow for unauthenticated, remote code execution. 9.8 CISA 2021-11-03 2021-11-17 Known
CVE-2019-3396 Atlassian Confluence Server and Data Server Atlassian Confluence Server and Data Center Server-Side Template Injection Vulnerability Atlassian Confluence Server and Data Center contain a server-side template injection vulnerability that may allow an attacker to achieve path traversal and remote code execution. 9.8 CISA 2021-11-03 2022-05-03 Known
CVE-2019-11580 Atlassian Crowd and Crowd Data Center Atlassian Crowd and Crowd Data Center Remote Code Execution Vulnerability Atlassian Crowd and Crowd Data Center contain a remote code execution vulnerability resulting from a pdkinstall development plugin being incorrectly enabled in release builds. 9.8 CISA 2021-11-03 2022-05-03 Known
CVE-2021-26084 Atlassian Confluence Server and Data Center Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection Vulnerability Atlassian Confluence Server and Data Server contain an Object-Graph Navigation Language (OGNL) injection vulnerability that may allow an unauthenticated attacker to execute code. 9.8 CISA 2021-11-03 2021-11-17 Known
CVE-2019-3398 Atlassian Confluence Server and Data Center Atlassian Confluence Server and Data Center Path Traversal Vulnerability Atlassian Confluence Server and Data Center contain a path traversal vulnerability in the downloadallattachments resource that may allow a privileged, remote attacker to write files. Exploitation can lead to remote code execution. 8.8 CISA 2021-11-03 2022-05-03 Unknown
CVE-2021-28663 Arm Mali Graphics Processing Unit (GPU) Arm Mali Graphics Processing Unit (GPU) Use-After-Free Vulnerability Arm Mali Graphics Processing Unit (GPU) kernel driver contains a use-after-free vulnerability that may allow a non-privileged user to make improper operations on GPU memory to gain root privilege, and/or disclose information. 8.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2021-28664 Arm Mali Graphics Processing Unit (GPU) Arm Mali Graphics Processing Unit (GPU) Unspecified Vulnerability Arm Mali Graphics Processing Unit (GPU) kernel driver contains an unspecified vulnerability that may allow a non-privileged user to gain write access to read-only memory, gain root privilege, corrupt memory, and modify the memory of other processes. 8.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2021-27562 Arm Trusted Firmware Arm Trusted Firmware Out-of-Bounds Write Vulnerability 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. 5.5 CISA 2021-11-03 2021-11-17 Unknown
CVE-2021-20090 Arcadyan Buffalo Firmware Arcadyan Buffalo Firmware Path Traversal Vulnerability Arcadyan Buffalo firmware contains a path traversal vulnerability that could allow unauthenticated, remote attackers to bypass authentication and access sensitive information. This vulnerability affects multiple routers across several different vendors. 9.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2020-9859 Apple Multiple Products Apple Multiple Products Code Execution Vulnerability Apple iOS, iPadOS, macOS, watchOS, and tvOS contain an unspecified vulnerability that may allow an application to execute code with kernel privileges. 7.8 CISA 2021-11-03 2022-05-03 Unknown
CVE-2021-30869 Apple iOS, iPadOS, and macOS Apple iOS, iPadOS, and macOS Type Confusion Vulnerability Apple iOS, iPadOS, and macOS contain a type confusion vulnerability in the XNU which may allow a malicious application to execute code with kernel privileges. 7.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2021-30761 Apple iOS Apple iOS WebKit Memory Corruption Vulnerability Apple iOS WebKit contains a memory corruption vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing. 8.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2021-30663 Apple Multiple Products Apple Multiple Products WebKit Integer Overflow Vulnerability Apple iOS, iPadOS, macOS, tvOS, and Safari WebKit contain an integer overflow vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing. 7.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2021-30665 Apple Multiple Products Apple Multiple Products WebKit Memory Corruption Vulnerability Apple iOS, iPadOS, macOS, watchOS, and tvOS WebKit contain a memory corruption vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing. 8.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2021-30657 Apple macOS Apple macOS Unspecified Vulnerability Apple macOS contains an unspecified logic issue in System Preferences that may allow a malicious application to bypass Gatekeeper checks. 5.5 CISA 2021-11-03 2021-11-17 Unknown
CVE-2021-30713 Apple macOS Apple macOS Unspecified Vulnerability Apple macOS Transparency, Consent, and Control (TCC) contains an unspecified permissions issue which may allow a malicious application to bypass privacy preferences. 7.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2021-30666 Apple iOS Apple iOS WebKit Buffer Overflow Vulnerability Apple iOS WebKit contains a buffer-overflow vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing. 8.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2021-30661 Apple Multiple Products Apple Multiple Products WebKit Storage Use-After-Free Vulnerability Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit Storage contain a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing. 8.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2021-1879 Apple iOS, iPadOS, and watchOS Apple iOS, iPadOS, and watchOS WebKit Cross-Site Scripting (XSS) Vulnerability Apple iOS, iPadOS, and watchOS WebKit contain an unspecified vulnerability that allows for universal cross-site scripting (XSS) when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing. 6.1 CISA 2021-11-03 2021-11-17 Unknown
CVE-2021-1871 Apple iOS, iPadOS, and macOS Apple iOS, iPadOS, and macOS WebKit Remote Code Execution Vulnerability Apple iOS, iPadOS, and macOS WebKit contain an unspecified logic vulnerability that allows a remote attacker to execute code. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing. 9.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2021-1870 Apple iOS, iPadOS, and macOS Apple iOS, iPadOS, and macOS WebKit Remote Code Execution Vulnerability Apple iOS, iPadOS, and macOS WebKit contain an unspecified logic vulnerability that allows a remote attacker to execute code. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing. 9.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2021-1782 Apple Multiple Products Apple Multiple Products Race Condition Vulnerability Apple iOS, iPadOs, macOS, watchOS, and tvOS contain a race condition vulnerability that may allow a malicious application to elevate privileges. 7.0 CISA 2021-11-03 2021-11-17 Unknown
CVE-2021-30762 Apple iOS Apple iOS WebKit Use-After-Free Vulnerability Apple iOS WebKit contains a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing. 8.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2020-9819 Apple iOS, iPadOS, and watchOS Apple iOS, iPadOS, and watchOS Memory Corruption Vulnerability Apple iOS, iPadOS, and watchOS Mail contains a memory corruption vulnerability that may allow heap corruption when processing a maliciously crafted mail message. 4.3 CISA 2021-11-03 2022-05-03 Unknown
CVE-2020-9818 Apple iOS, iPadOS, and watchOS Apple iOS, iPadOS, and watchOS Out-of-Bounds Write Vulnerability Apple iOS, iPadOS, and watchOS Mail contains an out-of-bounds write vulnerability which may allow memory modification or application termination when processing a maliciously crafted mail message. 8.8 CISA 2021-11-03 2022-05-03 Unknown
CVE-2020-27932 Apple Multiple Products Apple Multiple Products Type Confusion Vulnerability Apple iOS, iPadOS, macOS, and watchOS contain a type confusion vulnerability that may allow a malicious application to execute code with kernel privileges. 7.8 CISA 2021-11-03 2022-05-03 Unknown
CVE-2020-27950 Apple Multiple Products Apple Multiple Products Memory Initialization Vulnerability Apple iOS, iPadOS, macOS, and watchOS contain a memory initialization vulnerability that may allow a malicious application to disclose kernel memory. 5.5 CISA 2021-11-03 2022-05-03 Unknown
CVE-2021-30807 Apple Multiple Products Apple Multiple Products Memory Corruption Vulnerability Apple iOS, iPadOS, macOS, and watchOS IOMobileFrameBuffer contain a memory corruption vulnerability which may allow an application to execute code with kernel privileges. 7.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2020-27930 Apple Multiple Products Apple Multiple Products Memory Corruption Vulnerability Apple iOS, iPadOS, macOS, and watchOS FontParser contain a memory corruption vulnerability which may allow for code execution when processing maliciously crafted front. 7.8 CISA 2021-11-03 2022-05-03 Unknown
CVE-2021-30860 Apple Multiple Products Apple Multiple Products Integer Overflow Vulnerability Apple iOS, iPadOS, macOS, and watchOS CoreGraphics contain an integer overflow vulnerability which may allow code execution when processing a maliciously crafted PDF. The vulnerability is also known under the moniker of FORCEDENTRY. 7.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2019-6223 Apple iOS and macOS Apple iOS and macOS Group Facetime Vulnerability Apple iOS and macOS Group FaceTime contains an unspecified vulnerability where the call initiator can cause the recipient's Apple device to answer unknowingly or without user interaction. 7.5 CISA 2021-11-03 2022-05-03 Unknown
CVE-2021-30858 Apple iOS, iPadOS, and macOS Apple iOS, iPadOS, macOS Use-After-Free Vulnerability Apple iOS, iPadOS, and macOS WebKit contain a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing. 8.8 CISA 2021-11-03 2021-11-17 Unknown
CVE-2018-11776 Apache Struts Apache Struts Remote Code Execution Vulnerability Apache Struts contains a vulnerability that allows for remote code execution under two circumstances. One, where the alwaysSelectFullNamespace option is true and the value isn't set for a result defined in underlying configurations and in same time, its upper package configuration have no or wildcard namespace. Or, using URL tag which doesn't have value and action set and in same time, its upper package configuration have no or wildcard namespace. 8.1 CISA 2021-11-03 2022-05-03 Unknown