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.
9.9
CVE-2024-57726 - SimpleHelp Missing Authorization Vulnerability -
Action Due May 08, 2026 Target Vendor : SimpleHelp
Description :SimpleHelp contains a missing authorization vulnerability that could allow low-privileged technicians to create API keys with excessive permissions. These API keys can be used to escalate privileges to the server admin role.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Known Detected May 15, 2026
Notes :https://simple-help.com/kb---security-vulnerabilities-01-2025#security-vulnerabilities-in-simplehelp-5-5-7-and-earlier ; https://nvd.nist.gov/vuln/detail/CVE-2024-57726
9.8
CVE-2024-7399 - Samsung MagicINFO 9 Server Path Traversal Vulnerability -
Action Due May 08, 2026 Target Vendor : Samsung
Description :Samsung MagicINFO 9 Server contains a path traversal vulnerability that could allow an attacker to write arbitrary files as system authority.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://security.samsungtv.com/securityUpdates ; https://nvd.nist.gov/vuln/detail/CVE-2024-7399
7.2
CVE-2024-57728 - SimpleHelp Path Traversal Vulnerability -
Action Due May 08, 2026 Target Vendor : SimpleHelp
Description :SimpleHelp contains a path traversal vulnerability that allows admin users to upload arbitrary files anywhere on the file system by uploading a crafted zip file (i.e. zip slip). This can be exploited to execute arbitrary code on the host in the context of the SimpleHelp server user.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Known Detected May 15, 2026
Notes :https://simple-help.com/kb---security-vulnerabilities-01-2025#security-vulnerabilities-in-simplehelp-5-5-7-and-earlier ; https://nvd.nist.gov/vuln/detail/CVE-2024-57728
9.8
CVE-2026-39987 - Marimo Remote Code Execution Vulnerability -
Action Due May 07, 2026 Target Vendor : Marimo
Description :Marimo contains an pre-authorization remote code execution vulnerability, allowing an unauthenticated attacked to shell access and execute arbitrary system commands.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://github.com/marimo-team/marimo/security/advisories/GHSA-2679-6mx9-h9xc ; https://nvd.nist.gov/vuln/detail/CVE-2026-39987
7.8
CVE-2026-33825 - Microsoft Defender Insufficient Granularity of Access Control Vulnerability -
Action Due May 06, 2026 Target Vendor : Microsoft
Description :Microsoft Defender contains an insufficient granularity of access control vulnerability that could allow an authorized attacker to escalate privileges locally.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33825 ; https://nvd.nist.gov/vuln/detail/CVE-2026-33825
7.5
CVE-2026-20128 - Cisco Catalyst SD-WAN Manager Storing Passwords in a Recoverable Format Vulnerability -
Action Due Apr 23, 2026 Target Vendor : Cisco
Description :Cisco Catalyst SD-WAN Manager contains a storing passwords in a recoverable format vulnerability that allows an authenticated, local attacker to gain DCA user privileges by accessing a credential file for the DCA user on the filesystem as a low-privileged user.
Action :Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :CISA Mitigation Instructions: https://www.cisa.gov/news-events/directives/ed-26-03-mitigate-vulnerabilities-cisco-sd-wan-systems ; https://www.cisa.gov/news-events/directives/supplemental-direction-ed-26-03-hunt-and-hardening-guidance-cisco-sd-wan-systems ; https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v ; https://nvd.nist.gov/vuln/detail/CVE-2026-20128
7.3
CVE-2024-27199 - JetBrains TeamCity Relative Path Traversal Vulnerability -
Action Due May 04, 2026 Target Vendor : JetBrains
Description :JetBrains TeamCity contains a relative path traversal vulnerability that could allow limited admin actions to be performed.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Known Detected Apr 22, 2026
Notes :https://www.jetbrains.com/privacy-security/issues-fixed/ ; https://blog.jetbrains.com/teamcity/2024/03/additional-critical-security-issues-affecting-teamcity-on-premises-cve-2024-27198-and-cve-2024-27199-update-to-2023-11-4-now/ ; https://nvd.nist.gov/vuln/detail/CVE-2024-27199
6.1
CVE-2025-48700 - Synacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability -
Action Due Apr 23, 2026 Target Vendor : Synacor
Description :Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability that could allow attackers to execute arbitrary JavaScript within the user's session, potentially leading to unauthorized access to sensitive information.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories ; https://nvd.nist.gov/vuln/detail/CVE-2025-48700
10.0
CVE-2025-32975 - Quest KACE Systems Management Appliance (SMA) Improper Authentication Vulnerability -
Action Due May 04, 2026 Target Vendor : Quest
Description :Quest KACE Systems Management Appliance (SMA) contains an improper authentication vulnerability that could allow attackers to impersonate legitimate users without valid credentials.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://support.quest.com/kb/4379499/quest-response-to-kace-sma-vulnerabilities-cve-2025-32975-cve-2025-32976-cve-2025-32977-cve-2025-32978 ; https://nvd.nist.gov/vuln/detail/CVE-2025-32975
8.2
CVE-2023-27351 - PaperCut NG/MF Improper Authentication Vulnerability -
Action Due May 04, 2026 Target Vendor : PaperCut
Description :PaperCut NG/MF contains an improper authentication vulnerability that could allow remote attackers to bypass authentication on affected installations via the SecurityRequestFilter class.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Known Detected Apr 22, 2026
Notes :https://www.papercut.com/kb/Main/PO-1216-and-PO-1219 ; https://nvd.nist.gov/vuln/detail/CVE-2023-27351
7.2
CVE-2025-2749 - Kentico Xperience Path Traversal Vulnerability -
Action Due May 04, 2026 Target Vendor : Kentico
Description :Kentico Xperience contains a path traversal vulnerability that could allow an authenticated user's Staging Sync Server to upload arbitrary data to path relative locations.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://devnet.kentico.com/download/hotfixes ; https://nvd.nist.gov/vuln/detail/CVE-2025-2749
7.5
CVE-2026-20133 - Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability -
Action Due Apr 23, 2026 Target Vendor : Cisco
Description :Cisco Catalyst SD-WAN Manager contains an exposure of sensitive information to an unauthorized actor vulnerability that could allow remote attackers to view sensitive information on affected systems.
Action :Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :CISA Mitigation Instructions: https://www.cisa.gov/news-events/directives/ed-26-03-mitigate-vulnerabilities-cisco-sd-wan-systems ; https://www.cisa.gov/news-events/directives/supplemental-direction-ed-26-03-hunt-and-hardening-guidance-cisco-sd-wan-systems ; https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v ; https://nvd.nist.gov/vuln/detail/CVE-2026-20133
5.4
CVE-2026-20122 - Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability -
Action Due Apr 23, 2026 Target Vendor : Cisco
Description :Cisco Catalyst SD-WAN Manager contains an incorrect use of privileged APIs vulnerability due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges.
Action :Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :CISA Mitigation Instructions: https://www.cisa.gov/news-events/directives/ed-26-03-mitigate-vulnerabilities-cisco-sd-wan-systems ; https://www.cisa.gov/news-events/directives/supplemental-direction-ed-26-03-hunt-and-hardening-guidance-cisco-sd-wan-systems ; https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v ; https://nvd.nist.gov/vuln/detail/CVE-2026-20122
8.8
CVE-2026-34197 - Apache ActiveMQ Improper Input Validation Vulnerability -
Action Due Apr 30, 2026 Target Vendor : Apache
Description :Apache ActiveMQ contains an improper input validation vulnerability that allows for code injection.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://activemq.apache.org/security-advisories.data/CVE-2026-34197-announcement.txt ; https://nvd.nist.gov/vuln/detail/CVE-2026-34197
6.5
CVE-2026-32201 - Microsoft SharePoint Server Improper Input Validation Vulnerability -
Action Due Apr 28, 2026 Target Vendor : Microsoft
Description :Microsoft SharePoint Server contains an improper input validation vulnerability that allows an unauthorized attacker to perform spoofing over a network.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-32201 ; https://nvd.nist.gov/vuln/detail/CVE-2026-32201
9.3
CVE-2009-0238 - Microsoft Office Remote Code Execution -
Action Due Apr 28, 2026 Target Vendor : Microsoft
Description :Microsoft Office Excel contains a remote code execution vulnerability that could allow an attacker to take complete control of an affected system if a user opens a specially crafted Excel file that includes a malformed object.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://learn.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-009 ; https://nvd.nist.gov/vuln/detail/CVE-2009-0238
9.6
CVE-2026-34621 - Adobe Acrobat and Reader Prototype Pollution Vulnerability -
Action Due Apr 27, 2026 Target Vendor : Adobe
Description :Adobe Acrobat and Reader contain a prototype pollution vulnerability that allows for arbitrary code execution.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://helpx.adobe.com/security/products/acrobat/apsb26-43.html ; https://nvd.nist.gov/vuln/detail/CVE-2026-34621
8.8
CVE-2023-21529 - Microsoft Exchange Server Deserialization of Untrusted Data Vulnerability -
Action Due Apr 27, 2026 Target Vendor : Microsoft
Description :Microsoft Exchange Server contains a deserialization of untrusted data that allows an authenticated attacker to achieve remote code execution.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Known Detected Apr 22, 2026
Notes :https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21529 ; https://nvd.nist.gov/vuln/detail/CVE-2023-21529
9.8
CVE-2026-21643 - Fortinet FortiClient EMS SQL Injection Vulnerability -
Action Due Apr 16, 2026 Target Vendor : Fortinet
Description :Fortinet FortiClient EMS contains a SQL injection vulnerability that may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests.
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://fortiguard.fortinet.com/psirt/FG-IR-25-1142 ; https://nvd.nist.gov/vuln/detail/CVE-2026-21643
7.8
CVE-2023-36424 - Microsoft Windows Out-of-Bounds Read Vulnerability -
Action Due Apr 27, 2026 Target Vendor : Microsoft
Description :Microsoft Windows Common Log File System Driver contains an out-of-bounds read vulnerability that could allow a threat actor for privileges escalation
Action :Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes :https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2023-36424 ; https://nvd.nist.gov/vuln/detail/CVE-2023-36424