September 2026
CVE-2026-20250: Cisco Secure Firewall ASA and FTD for Firepower 3100 and 4200 Series DTLS Denial of Service VulnerabilityNew!!
Cisco published a High-rated advisory that includes CVE-2026-20250. Cisco does not separately state a CVE-specific SIR. TechGeeks scope, action, fixed-release guidance, evidence status, and primary Cisco sources.
CVE-2026-20249: Cisco Secure Firewall ASA and FTD IKEv2 Certificate Authentication Denial of Service VulnerabilityNew!!
Cisco published a High-rated advisory that includes CVE-2026-20249. Cisco does not separately state a CVE-specific SIR. TechGeeks scope, action, fixed-release guidance, evidence status, and primary Cisco sources.
CVE-2026-20248: Cisco Secure Firewall ASA and FTD TCP DNS Denial of Service VulnerabilityNew!!
Cisco published a Medium-rated advisory that includes CVE-2026-20248. Cisco does not separately state a CVE-specific SIR. TechGeeks scope, action, fixed-release guidance, evidence status, and primary Cisco sources.
CVE-2026-20247: Cisco ISE Unauthenticated SQL Injection VulnerabilityNew!!
Cisco published a High-rated advisory that includes CVE-2026-20247. Cisco explicitly lists a High CVE-specific SIR. TechGeeks scope, action, fixed-release guidance, evidence status, and primary Cisco sources.
CVE-2026-20242: Cisco Secure Firewall Management Center Software Java Deserialization Remote Code Execution VulnerabilityNew!!
Cisco published a Critical-rated advisory that includes CVE-2026-20242. Cisco does not separately state a CVE-specific SIR. TechGeeks scope, action, fixed-release guidance, evidence status, and primary Cisco sources.
CVE-2026-20237: Cisco ISE hardening: Input Validation VulnerabilitiesNew!!
Cisco published a Critical-rated advisory that includes CVE-2026-20237. Cisco does not separately state a CVE-specific SIR. TechGeeks scope, action, fixed-release guidance, evidence status, and primary Cisco sources.
CVE-2026-20235: Cisco Identity Services Engine Information Disclosure VulnerabilityNew!!
Cisco published a Medium-rated advisory that includes CVE-2026-20235. Cisco does not separately state a CVE-specific SIR. TechGeeks scope, action, fixed-release guidance, evidence status, and primary Cisco sources.
CVE-2026-20234: Cisco ISE hardening: Insufficiently Protected Credential VulnerabilitiesNew!!
Cisco published a Critical-rated advisory that includes CVE-2026-20234. Cisco does not separately state a CVE-specific SIR. TechGeeks scope, action, fixed-release guidance, evidence status, and primary Cisco sources.
CVE-2026-20222: Cisco Secure Firewall ASA and FTD EIGRP Denial of Service VulnerabilityNew!!
Cisco published a High-rated advisory that includes CVE-2026-20222. Cisco does not separately state a CVE-specific SIR. TechGeeks scope, action, fixed-release guidance, evidence status, and primary Cisco sources.
CVE-2026-20211: Cisco ISE Remote Code Execution VulnerabilityNew!!
Cisco published a Critical-rated advisory that includes CVE-2026-20211. Cisco explicitly lists a Critical CVE-specific SIR. TechGeeks scope, action, fixed-release guidance, evidence status, and primary Cisco sources.