🚨 [CISA-2026:0909] CISA Adds 4 Known Exploited Vulnerabilities to Catalog (https://secdb.nttzen.cloud/security-advisory/detail/CISA-2026:0909) CISA has added 4 new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risk to the federal enterprise. ⚠️ CVE-2025-25249 (https://secdb.nttzen.cloud/cve/detail/CVE-2025-25249) - Name: Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability - Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. - Known To Be Used in Ransomware Campaigns? Unknown - Vendor: Fortinet - Product: Multiple Products - Notes: https://fortiguard.fortinet.com/psirt/FG-IR-25-084 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2025-25249 ⚠️ CVE-2026-19490 (https://secdb.nttzen.cloud/cve/detail/CVE-2026-19490) - Name: Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerability - Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. - Known To Be Used in Ransomware Campaigns? Unknown - Vendor: Citrix - Product: NetScaler - Notes: https://support.citrix.com/external/article/CTX696939/netscaler-adc-and-netscaler-gateway-secu.html ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-19490 ⚠️ CVE-2026-20079 (https://secdb.nttzen.cloud/cve/detail/CVE-2026-20079) - Name: Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel Vulnerability - Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. - Known To Be Used in Ransomware Campaigns? Unknown - Vendor: Cisco - Product: Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management - Notes: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-onprem-fmc-authbypass-5JPp45V2 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-20079 ⚠️ CVE-2026-87491 (https://secdb.nttzen.cloud/cve/detail/CVE-2026-87491) - Name: Google Chromium V8 Out of Bounds Write Vulnerability - Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. - Known To Be Used in Ransomware Campaigns? Unknown - Vendor: Google - Product: Chromium V8 - Notes: https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-87491 #ZEN #SecDB #InfoSec #CVE #CISA_KEV #cisa_20260909 #cisa20260909 #cve_2025_25249 #cve_2026_19490 #cve_2026_20079 #cve_2026_87491 #cve202525249 #cve202619490 #cve202620079 #cve202687491