Ce mail provient de l'extérieur, restons vigilants ===================================================================== CERT-Renater Note d'Information No. 2026/VULN903 _____________________________________________________________________ DATE : 17/09/2026 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running Cisco Identity Services Engine software, Cisco Secure Firewall Management Center Software, Cisco Nexus Dashboard Software, Cisco Secure Firewall Adaptive Security Appliance, Secure Firewall Threat Defense, and Secure Firewall Management Center Software, Cisco BroadWorks CommPilot Application Software, Cisco ThousandEyes Virtual Appliance. ===================================================================== https://sec.cloudapps.cisco.com/security/center/publicationListing.x _____________________________________________________________________ Below is the list of Cisco Security Advisories published by Cisco $PSIRT on 2026-September-16. The following PSIRT security advisories (12 Critical, 9 High, 12 Medium) were published at 16:05 UTC today. Table of Contents: 1) Cisco Identity Services Engine Authentication Bypass Vulnerability - SIR: Critical 2) Cisco Identity Services Engine Vulnerabilities - SIR: Critical 3) Cisco Secure Firewall Management Center Software sftunnel Root Arbitrary Code Execution Vulnerability - SIR: Critical 4) Cisco Nexus Dashboard Software Security Hardening Release: September 2026 - SIR: Critical 5) Cisco Secure Firewall Adaptive Security Appliance, Secure Firewall Threat Defense, and Secure Firewall Management Center Software Hardening Release: September 2026 - SIR: Critical 6) Cisco Identity Services Engine Hardening Release: September 2026 - SIR: Critical 7) Cisco Identity Services Engine Remote Code Execution Vulnerabilities - SIR: Critical 8) Cisco Secure Firewall Management Center Software Java Deserialization Remote Code Execution Vulnerability - SIR: Critical 9) Cisco Secure Firewall Management Center Software Vulnerabilities - SIR: Critical 10) Cisco Secure Firewall Management Center Software Vulnerabilities - SIR: Critical 11) Cisco Identity Services Engine Command Injection Vulnerabilities - SIR: Critical 12) Cisco Identity Services Engine Authenticated Remote Code Execution and API Vulnerabilities - SIR: Critical 13) Cisco Identity Services Engine RADIUS Denial of Service Vulnerability - SIR: High 14) Cisco Secure Firewall Management Center and Secure Firewall Threat Defense Software sftunnel Vulnerabilities - SIR: High 15) Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software for Secure Firewall 3100 and 4200 Series DTLS Denial of Service Vulnerability - SIR: High 16) Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software IKEv2 Certificate Authentication Denial of Service Vulnerability - SIR: High 17) Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Logging Denial of Service Vulnerability - SIR: High 18) Cisco Secure Firewall Threat Defense Software TLS 1.3 Denial of Service Vulnerability - SIR: High 19) Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software SSL VPN Denial of Service Vulnerability - SIR: High 20) Cisco Identity Services Engine SQL Injection Vulnerabilities - SIR: High 21) Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software EIGRP Denial of Service Vulnerability - SIR: High 22) Cisco BroadWorks CommPilot Application Software Authorization Bypass Vulnerability - SIR: Medium 23) Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software TCP DNS Denial of Service Vulnerability - SIR: Medium 24) Cisco Identity Services Engine Cross-Site Scripting Vulnerability - SIR: Medium 25) Cisco Secure Firewall Threat Defense Software Snort 2 SSL/TLS Denial of Service Vulnerability - SIR: Medium 26) Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Object Group Access Control List Bypass Vulnerabilities - SIR: Medium 27) Cisco Identity Services Engine SQL and HQL Injection Vulnerabilities - SIR: Medium 28) Cisco Identity Services Engine Authentication Bypass Vulnerabilities - SIR: Medium 29) Cisco Identity Services Engine Multiple Path Traversal Vulnerabilities - SIR: Medium 30) Cisco ThousandEyes Virtual Appliance Authenticated Web Interface Command Injection Vulnerability - SIR: Medium 31) Cisco Identity Services Engine Information Disclosure Vulnerability - SIR: Medium 32) Cisco Identity Services Engine 802.1X Session Hijack and Information Disclosure Vulnerabilities - SIR: Medium 33) Cisco Identity Services Engine Authorization Bypass Vulnerabilities - SIR: Medium +-------------------------------------------------------------------- 1) Cisco Identity Services Engine Authentication Bypass Vulnerability CVE-2026-76460 SIR: Critical CVSS Score v(3.1): 10.0 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ISE-ABP-VNSW7Tn5 ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ISE-ABP-VNSW7Tn5"] +-------------------------------------------------------------------- 2) Cisco Identity Services Engine Vulnerabilities CVE-2026-76423, CVE-2026-76424, CVE-2026-76425, CVE-2026-76426, CVE-2026-76427, CVE-2026-76428 SIR: Critical CVSS Score v(3.1): 10.0 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multi-hrP9jQSQ ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multi-hrP9jQSQ"] +-------------------------------------------------------------------- 3) Cisco Secure Firewall Management Center Software sftunnel Root Arbitrary Code Execution Vulnerability CVE-2026-20324 SIR: Critical CVSS Score v(3.1): 9.9 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-sftunn-codex-c3O4Jft2 ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-sftunn-codex-c3O4Jft2"] +-------------------------------------------------------------------- 4) Cisco Nexus Dashboard Software Security Hardening Release: September 2026 CVE-2026-20322, CVE-2026-20325, CVE-2026-20326, CVE-2026-20360, CVE-2026-20361, CVE-2026-76409 SIR: Critical CVSS Score v(3.1): 9.9 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-ndw1-psFvnrg ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-ndw1-psFvnrg"] +-------------------------------------------------------------------- 5) Cisco Secure Firewall Adaptive Security Appliance, Secure Firewall Threat Defense, and Secure Firewall Management Center Software Hardening Release: September 2026 CVE-2026-20329, CVE-2026-20330, CVE-2026-20331, CVE-2026-20332, CVE-2026-20333, CVE-2026-20334, CVE-2026-20335, CVE-2026-20336 SIR: Critical CVSS Score v(3.1): 9.9 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-asaftdfmc-uvpPROhN ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-asaftdfmc-uvpPROhN"] +-------------------------------------------------------------------- 6) Cisco Identity Services Engine Hardening Release: September 2026 CVE-2026-20130, CVE-2026-20192, CVE-2026-20194, CVE-2026-20234, CVE-2026-20237, CVE-2026-20287 SIR: Critical CVSS Score v(3.1): 10.0 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-ise-XU5EwX5T ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-ise-XU5EwX5T"] +-------------------------------------------------------------------- 7) Cisco Identity Services Engine Remote Code Execution Vulnerabilities CVE-2026-20176, CVE-2026-20211, CVE-2026-20307 SIR: Critical CVSS Score v(3.1): 9.9 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-rce-se7bYU57 ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-rce-se7bYU57"] +-------------------------------------------------------------------- 8) Cisco Secure Firewall Management Center Software Java Deserialization Remote Code Execution Vulnerability CVE-2026-20242 SIR: Critical CVSS Score v(3.1): 9.8 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-javarce-y2NypXwk ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-javarce-y2NypXwk"] +-------------------------------------------------------------------- 9) Cisco Secure Firewall Management Center Software Vulnerabilities CVE-2026-76412, CVE-2026-76413, CVE-2026-76420 SIR: Critical CVSS Score v(3.1): 9.0 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc2-multivulns-HXgcqRG ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc2-multivulns-HXgcqRG"] +-------------------------------------------------------------------- 10) Cisco Secure Firewall Management Center Software Vulnerabilities CVE-2026-20340, CVE-2026-20341, CVE-2026-20342, CVE-2026-20343, CVE-2026-20344 SIR: Critical CVSS Score v(3.1): 9.1 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-mulivulns-4PsnFwvx ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-mulivulns-4PsnFwvx"] +-------------------------------------------------------------------- 11) Cisco Identity Services Engine Command Injection Vulnerabilities CVE-2026-20305, CVE-2026-20306 SIR: Critical CVSS Score v(3.1): 9.1 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-cmd-inj-e2CuZCYZ ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-cmd-inj-e2CuZCYZ"] +-------------------------------------------------------------------- 12) Cisco Identity Services Engine Authenticated Remote Code Execution and API Vulnerabilities CVE-2026-20282, CVE-2026-20283, CVE-2026-20284 SIR: Critical CVSS Score v(3.1): 9.1 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-mult-vul-ymSsTLCc ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-mult-vul-ymSsTLCc"] +-------------------------------------------------------------------- 13) Cisco Identity Services Engine RADIUS Denial of Service Vulnerability CVE-2026-20352 SIR: High CVSS Score v(3.1): 8.6 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-RADIUS-dos-wR3hYPMw ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-RADIUS-dos-wR3hYPMw"] +-------------------------------------------------------------------- 14) Cisco Secure Firewall Management Center and Secure Firewall Threat Defense Software sftunnel Vulnerabilities CVE-2026-20295, CVE-2026-20323 SIR: High CVSS Score v(3.1): 8.6 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmcftd-sftun-multivulns-WGVHOrN3 ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmcftd-sftun-multivulns-WGVHOrN3"] +-------------------------------------------------------------------- 15) Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software for Secure Firewall 3100 and 4200 Series DTLS Denial of Service Vulnerability CVE-2026-20250 SIR: High CVSS Score v(3.1): 8.6 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-dtls-dos-Kp57HkyO ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-dtls-dos-Kp57HkyO"] +-------------------------------------------------------------------- 16) Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software IKEv2 Certificate Authentication Denial of Service Vulnerability CVE-2026-20249 SIR: High CVSS Score v(3.1): 8.6 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2cert-dos-uWyc2xtv ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2cert-dos-uWyc2xtv"] +-------------------------------------------------------------------- 17) Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Logging Denial of Service Vulnerability CVE-2026-20154 SIR: High CVSS Score v(3.1): 8.6 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-logging-dos-ZXXNesfN ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-logging-dos-ZXXNesfN"] +-------------------------------------------------------------------- 18) Cisco Secure Firewall Threat Defense Software TLS 1.3 Denial of Service Vulnerability CVE-2026-20135 SIR: High CVSS Score v(3.1): 8.6 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-tls1.3-dos-dLxwFWgF ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-tls1.3-dos-dLxwFWgF"] +-------------------------------------------------------------------- 19) Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software SSL VPN Denial of Service Vulnerability CVE-2024-20260 SIR: High CVSS Score v(3.1): 8.6 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftdvirtual-dos-MuenGnYR ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftdvirtual-dos-MuenGnYR"] +-------------------------------------------------------------------- 20) Cisco Identity Services Engine SQL Injection Vulnerabilities CVE-2026-20247, CVE-2026-20300 SIR: High CVSS Score v(3.1): 7.5 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-sql-inj-3QTKR947 ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-sql-inj-3QTKR947"] +-------------------------------------------------------------------- 21) Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software EIGRP Denial of Service Vulnerability CVE-2026-20222 SIR: High CVSS Score v(3.1): 7.4 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-eigrp-dos-GOhNejSj ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-eigrp-dos-GOhNejSj"] +-------------------------------------------------------------------- 22) Cisco BroadWorks CommPilot Application Software Authorization Bypass Vulnerability CVE-2026-76438 SIR: Medium CVSS Score v(3.1): 6.5 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-auth-bypass-broadwor-57m9dmm5 ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-auth-bypass-broadwor-57m9dmm5"] +-------------------------------------------------------------------- 23) Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software TCP DNS Denial of Service Vulnerability CVE-2026-20248 SIR: Medium CVSS Score v(3.1): 6.8 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-tcpdns-dos-p6dUnjr5 ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-tcpdns-dos-p6dUnjr5"] +-------------------------------------------------------------------- 24) Cisco Identity Services Engine Cross-Site Scripting Vulnerability CVE-2026-20309 SIR: Medium CVSS Score v(3.1): 6.1 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-xss-Uz9VWRQ ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-xss-Uz9VWRQ"] +-------------------------------------------------------------------- 25) Cisco Secure Firewall Threat Defense Software Snort 2 SSL/TLS Denial of Service Vulnerability CVE-2026-20290 SIR: Medium CVSS Score v(3.1): 5.8 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort2-ssldos-Mw7WYX9c ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort2-ssldos-Mw7WYX9c"] +-------------------------------------------------------------------- 26) Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Object Group Access Control List Bypass Vulnerabilities CVE-2026-20120, CVE-2026-20121 SIR: Medium CVSS Score v(3.1): 5.8 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-acl-bypass-8p6vFvw ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-acl-bypass-8p6vFvw"] +-------------------------------------------------------------------- 27) Cisco Identity Services Engine SQL and HQL Injection Vulnerabilities CVE-2026-76448, CVE-2026-76449, CVE-2026-76450, CVE-2026-76451 SIR: Medium CVSS Score v(3.1): 4.9 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multisql-inject-JnHK54Rq ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multisql-inject-JnHK54Rq"] +-------------------------------------------------------------------- 28) Cisco Identity Services Engine Authentication Bypass Vulnerabilities CVE-2026-76439, CVE-2026-76444, CVE-2026-76446, CVE-2026-76447 SIR: Medium CVSS Score v(3.1): 5.3 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multiauth-bypass-sgD2HbL4 ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multiauth-bypass-sgD2HbL4"] +-------------------------------------------------------------------- 29) Cisco Identity Services Engine Multiple Path Traversal Vulnerabilities CVE-2026-76431, CVE-2026-76432, CVE-2026-76433, CVE-2026-76434 SIR: Medium CVSS Score v(3.1): 5.3 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multi-traversal-WDTgYCdn ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multi-traversal-WDTgYCdn"] +-------------------------------------------------------------------- 30) Cisco ThousandEyes Virtual Appliance Authenticated Web Interface Command Injection Vulnerability CVE-2026-20350 SIR: Medium CVSS Score v(3.1): 4.7 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-teva-os-command-W4GAO6jp ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-teva-os-command-W4GAO6jp"] +-------------------------------------------------------------------- 31) Cisco Identity Services Engine Information Disclosure Vulnerability CVE-2026-20235 SIR: Medium CVSS Score v(3.1): 4.9 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-inf-disc-LFWvcCu ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-inf-disc-LFWvcCu"] +-------------------------------------------------------------------- 32) Cisco Identity Services Engine 802.1X Session Hijack and Information Disclosure Vulnerabilities CVE-2026-20071, CVE-2026-20072 SIR: Medium CVSS Score v(3.1): 4.9 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multi-vuln-kWLeNnRD ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multi-vuln-kWLeNnRD"] +-------------------------------------------------------------------- 33) Cisco Identity Services Engine Authorization Bypass Vulnerabilities CVE-2026-20285, CVE-2026-20286 SIR: Medium CVSS Score v(3.1): 4.3 URL: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-auth-bypass-1-MxcTNgwx ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-auth-bypass-1-MxcTNgwx"] ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 23/25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email:cert@support.renater.fr + =========================================================