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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%
Clear 24 entries
CVE Vendor Product Vulnerability CVSS Added Due per BOD 22-01 Ransomware
CVE-2026-19490 Citrix NetScaler Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerability Citrix NetScaler ADC and NetScaler Gateway contain an authentication-bypass vulnerability involving an alternate path or channel. When the NetScaler appliance is configured as an AAA virtual server or as a Gateway (SSL VPN, ICA Proxy, CVPN, or RDP Proxy), an unauthenticated remote threat actor may be able to bypass authentication. 9.3 CNA 2026-09-09 2026-09-12 Unknown
CVE-2026-8452 Citrix NetScaler ADC and NetScaler Gateway Citrix NetScaler ADC and NetScaler Gateway Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability Citrix NetScaler ADC and NetScaler Gateway contain an improper restriction of operations within the bounds of a memory buffer vulnerability which could lead to denial of service. 8.8 CNA 2026-08-26 2026-08-29 Unknown
CVE-2026-3055 Citrix NetScaler Citrix NetScaler Out-of-Bounds Read Vulnerability Citrix NetScaler ADC (formerly Citrix ADC), NetScaler Gateway (formerly Citrix Gateway) and NetScaler ADC FIPS and NDcPP contain an out-of-bounds reads vulnerability when configured as a SAML IDP leading to memory overread. 9.3 CNA 2026-03-30 2026-04-02 Unknown
CVE-2025-7775 Citrix NetScaler Citrix NetScaler Memory Overflow Vulnerability Citrix NetScaler ADC and NetScaler Gateway contain a memory overflow vulnerability that could allow for remote code execution and/or denial of service. 9.2 CNA 2025-08-26 2025-08-28 Unknown
CVE-2024-8069 Citrix Session Recording Citrix Session Recording Deserialization of Untrusted Data Vulnerability Citrix Session Recording contains a deserialization of untrusted data vulnerability that allows limited remote code execution with privilege of a NetworkService Account access. Attacker must be an authenticated user on the same intranet as the session recording server. 5.1 CNA 2025-08-25 2025-09-15 Unknown
CVE-2024-8068 Citrix Session Recording Citrix Session Recording Improper Privilege Management Vulnerability Citrix Session Recording contains an improper privilege management vulnerability that could allow for privilege escalation to NetworkService Account access. An attacker must be an authenticated user in the same Windows Active Directory domain as the session recording server domain. 5.1 CNA 2025-08-25 2025-09-15 Unknown
CVE-2025-5777 Citrix NetScaler ADC and Gateway Citrix NetScaler ADC and Gateway Out-of-Bounds Read Vulnerability Citrix NetScaler ADC and Gateway contain an out-of-bounds read vulnerability due to insufficient input validation. This vulnerability can lead to memory overread when the NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server. 9.3 CNA 2025-07-10 2025-07-11 Known
CVE-2025-6543 Citrix NetScaler ADC and Gateway Citrix NetScaler ADC and Gateway Buffer Overflow Vulnerability Citrix NetScaler ADC and Gateway contain a buffer overflow vulnerability leading to unintended control flow and Denial of Service. NetScaler must be configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server. 9.2 CNA 2025-06-30 2025-07-21 Unknown
CVE-2023-6548 Citrix NetScaler ADC and NetScaler Gateway Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability Citrix NetScaler ADC and NetScaler Gateway contain a code injection vulnerability that allows for authenticated remote code execution on the management interface with access to NSIP, CLIP, or SNIP. 5.5 CNA 2024-01-17 2024-01-24 Unknown
CVE-2023-6549 Citrix NetScaler ADC and NetScaler Gateway Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability Citrix NetScaler ADC and NetScaler Gateway contain a buffer overflow vulnerability that allows for a denial-of-service when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server. 8.2 CNA 2024-01-17 2024-02-07 Unknown
CVE-2023-4966 Citrix NetScaler ADC and NetScaler Gateway Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability Citrix NetScaler ADC and NetScaler Gateway contain a buffer overflow vulnerability that allows for sensitive information disclosure when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server. 9.4 CNA 2023-10-18 2023-11-08 Known
CVE-2023-24489 Citrix Content Collaboration Citrix Content Collaboration ShareFile Improper Access Control Vulnerability Citrix Content Collaboration contains an improper access control vulnerability that could allow an unauthenticated attacker to remotely compromise customer-managed ShareFile storage zones controllers. 9.8 CNA 2023-08-16 2023-09-06 Unknown
CVE-2023-3519 Citrix NetScaler ADC and NetScaler Gateway Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability Citrix NetScaler ADC and NetScaler Gateway contains a code injection vulnerability that allows for unauthenticated remote code execution. 9.8 CNA 2023-07-19 2023-08-09 Known
CVE-2022-27518 Citrix Application Delivery Controller (ADC) and Gateway Citrix Application Delivery Controller (ADC) and Gateway Authentication Bypass Vulnerability Citrix Application Delivery Controller (ADC) and Gateway, when configured with SAML SP or IdP configuration, contain an authentication bypass vulnerability that allows an attacker to execute code as administrator. 9.8 CNA 2022-12-13 2023-01-03 Unknown
CVE-2017-6316 Citrix NetScaler SD-WAN Enterprise, CloudBridge Virtual WAN, and XenMobile Server Citrix Multiple Products Remote Code Execution Vulnerability A vulnerability has been identified in the management interface of Citrix NetScaler SD-WAN Enterprise and Standard Edition and Citrix CloudBridge Virtual WAN Edition that could result in an unauthenticated, remote attacker being able to execute arbitrary code as a root user. This vulnerability also affects XenMobile Server. 9.8 CISA 2022-03-25 2022-04-15 Unknown
CVE-2019-12989 Citrix SD-WAN and NetScaler Citrix SD-WAN and NetScaler SQL Injection Vulnerability Citrix SD-WAN and NetScaler SD-WAN allow SQL Injection. 9.8 CISA 2022-03-25 2022-04-15 Unknown
CVE-2019-12991 Citrix SD-WAN and NetScaler Citrix SD-WAN and NetScaler Command Injection Vulnerability Authenticated Command Injection in Citrix SD-WAN Appliance and NetScaler SD-WAN Appliance. 8.8 CISA 2022-03-25 2022-04-15 Unknown
CVE-2021-22941 Citrix ShareFile Citrix ShareFile Improper Access Control Vulnerability Improper Access Control in Citrix ShareFile storage zones controller may allow an unauthenticated attacker to remotely compromise the storage zones controller. 9.8 CISA 2022-03-25 2022-04-15 Known
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