The KEV due date refers to the deadline by which FCEB agencies are expected to review and begin implementing the guidance outlined in Emergency Directive (ED) 25-03 (URL listed below in Notes). Agencies must follow the mitigation steps provided by CISA (URL listed below in Notes) and vendor’s instructions (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.
Evidence dossier
CVE-2025-20362
CVE-2025-20362
74.7–95.0Priority evidence range
gen-56ccdaf9Normalized restatement
Update: On November 5, 2025, Cisco became aware of a new attack variant against devices running Cisco Secure ASA Software or Cisco Secure FTD Software releases that are affected by CVE-2025-20333 and CVE-2025-20362. This attack can cause unpatched devices to unexpectedly reload, leading to denial of service (DoS) conditions. Cisco strongly recommends that all customers upgrade to the fixed software releases that are listed in the Fixed Software ["#fs"] section of this advisory. A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to access restricted URL endpoints that are related to remote access VPN that should otherwise be inaccessible without authentication. This vulnerability is due to improper validation of user-supplied input in HTTP(S) requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to a targeted web server on a device. A successful exploit could allow the attacker to access a restricted URL without authentication.
- State
- PUBLISHED
- Published
- Sep 25, 2025
- Updated
- Feb 26, 2026
- Evidence coverage
- 72%
2026-07-18 · v2026.06.15 · percentile 99.7%
Distinct CVSS assessments remain side by side; none are averaged.
Source comparison
Who said what
ciscooriginal assertion
container
Update: On November 5, 2025, Cisco became aware of a new attack variant against devices running Cisco Secure ASA Software or Cisco Secure FTD Software releases that are affected by CVE-2025-20333 and CVE-2025-20362. This attack can cause unpatched devices to unexpectedly reload, leading to denial of service (DoS) conditions. Cisco strongly recommends that all customers upgrade to the fixed software releases that are listed in the Fixed Software ["#fs"] section of this advisory. A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to access restricted URL endpoints that are related to remote access VPN that should otherwise be inaccessible without authentication. This vulnerability is due to improper validation of user-supplied input in HTTP(S) requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to a targeted web server on a device. A successful exploit could allow the attacker to access a restricted URL without authentication.
Jul 19, 2026Original evidence ↗
CISA KEVoriginal assertion
observed_exploitation
Cisco Secure Firewall Adaptive Security (ASA) Appliance and Secure Firewall Threat Defense (FTD) Missing Authorization Vulnerability
Jul 19, 2026Original evidence ↗
FIRST EPSSoriginal assertion
model_probability
Probability 0.855430000000; percentile 0.996990000000
Jul 19, 2026Original evidence ↗
Applicability
Cited product scope
CiscoCisco Secure Firewall Adaptive Security Appliance (ASA) Software
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"version": "9.8.3"}, {"status": "affected", "version": "9.8.3.26"}, {"status": "affected", "version": "9.8.3.29"}, {"status": "affected", "version": "9.8.4"}, {"status": "affected", "version": "9.8.4.3"}, {"status": "affected", "version": "9.8.4.7"}, {"status": "affected", "version": "9.8.4.8"}, {"status": "affected", "version": "9.8.4.10"}, {"status": "affected", "version": "9.8.4.12"}, {"status": "affected", "version": "9.8.4.15"}, {"status": "affected", "version": "9.8.4.17"}, {"status": "affected", "version": "9.8.2.45"}, {"status": "affected", "version": "9.8.4.25"}, {"status": "affected", "version": "9.8.4.20"}, {"status": "affected", "version": "9.8.4.22"}, {"status": "affected", "version": "9.8.4.26"}, {"status": "affected", "version": "9.8.4.29"}, {"status": "affected", "version": "9.8.4.32"}, {"status": "affected", "version": "9.8.4.33"}, {"status": "affected", "version": "9.8.4.34"}, {"status": "affected", "version": "9.8.4.35"}, {"status": "affected", "version": "9.8.4.39"}, {"status": "affected", "version": "9.8.4.40"}, {"status": "affected", "version": "9.8.4.41"}, {"status": "affected", "version": "9.8.4.43"}, {"status": "affected", "version": "9.8.4.44"}, {"status": "affected", "version": "9.8.4.45"}, {"status": "affected", "version": "9.8.4.46"}, {"status": "affected", "version": "9.8.4.48"}, {"status": "affected", "version": "9.12.1"}, {"status": "affected", "version": "9.12.1.2"}, {"status": "affected", "version": "9.12.1.3"}, {"status": "affected", "version": "9.12.2"}, {"status": "affected", "version": "9.12.2.4"}, {"status": "affected", "version": "9.12.2.5"}, {"status": "affected", "version": "9.12.2.9"}, {"status": "affected", "version": "9.12.3"}, {"status": "affected", "version": "9.12.3.2"}, {"status": "affected", "version": "9.12.3.7"}, {"status": "affected", "version": "9.12.4"}, {"status": "affected", "version": "9.12.3.12"}, {"status": "affected", "version": "9.12.3.9"}, {"status": "affected", "version": "9.12.2.1"}, {"status": "affected", "version": "9.12.4.2"}, {"status": "affected", "version": "9.12.4.4"}, {"status": "affected", "version": "9.12.4.7"}, {"status": "affected", "version": "9.12.4.10"}, {"status": "affected", "version": "9.12.4.13"}, {"status": "affected", "version": "9.12.4.8"}, {"status": "affected", "version": "9.12.4.18"}, {"status": "affected", "version": "9.12.4.24"}, {"status": "affected", "version": "9.12.4.26"}, {"status": "affected", "version": "9.12.4.29"}, {"status": "affected", "version": "9.12.4.30"}, {"status": "affected", "version": "9.12.4.35"}, {"status": "affected", "version": "9.12.4.37"}, {"status": "affected", "version": "9.12.4.38"}, {"status": "affected", "version": "9.12.4.39"}, {"status": "affected", "version": "9.12.4.40"}, {"status": "affected", "version": "9.12.4.41"}, {"status": "affected", "version": "9.12.4.47"}, {"status": "affected", "version": "9.12.4.48"}, {"status": "affected", "version": "9.12.4.50"}, {"status": "affected", "version": "9.12.4.52"}, {"status": "affected", "version": "9.12.4.54"}, {"status": "affected", "version": "9.12.4.55"}, {"status": "affected", "version": "9.12.4.56"}, {"status": "affected", "version": "9.12.4.58"}, {"status": "affected", "version": "9.12.4.62"}, {"status": "affected", "version": "9.12.4.65"}, {"status": "affected", "version": "9.12.4.67"}, {"status": "affected", "version": "9.14.1"}, {"status": "affected", "version": "9.14.1.10"}, {"status": "affected", "version": "9.14.1.6"}, {"status": "affected", "version": "9.14.1.15"}, {"status": "affected", "version": "9.14.1.19"}, {"status": "affected", "version": "9.14.1.30"}, {"status": "affected", "version": "9.14.2"}, {"status": "affected", "version": "9.14.2.4"}, {"status": "affected", "version": "9.14.2.8"}, {"status": "affected", "version": "9.14.2.13"}, {"status": "affected", "version": "9.14.2.15"}, {"status": "affected", "version": "9.14.3"}, {"status": "affected", "version": "9.14.3.1"}, {"status": "affected", "version": "9.14.3.9"}, {"status": "affected", "version": "9.14.3.11"}, {"status": "affected", "version": "9.14.3.13"}, {"status": "affected", "version": "9.14.3.18"}, {"status": "affected", "version": "9.14.3.15"}, {"status": "affected", "version": "9.14.4"}, {"status": "affected", "version": "9.14.4.6"}, {"status": "affected", "version": "9.14.4.7"}, {"status": "affected", "version": "9.14.4.12"}, {"status": "affected", "version": "9.14.4.13"}, {"status": "affected", "version": "9.14.4.14"}, {"status": "affected", "version": "9.14.4.15"}, {"status": "affected", "version": "9.14.4.17"}, {"status": "affected", "version": "9.14.4.22"}, {"status": "affected", "version": "9.14.4.23"}, {"status": "affected", "version": "9.14.4.24"}, {"status": "affected", "version": "9.16.1"}, {"status": "affected", "version": "9.16.1.28"}, {"status": "affected", "version": "9.16.2"}, {"status": "affected", "version": "9.16.2.3"}, {"status": "affected", "version": "9.16.2.7"}, {"status": "affected", "version": "9.16.2.11"}, {"status": "affected", "version": "9.16.2.13"}, {"status": "affected", "version": "9.16.2.14"}, {"status": "affected", "version": "9.16.3"}, {"status": "affected", "version": "9.16.3.3"}, {"status": "affected", "version": "9.16.3.14"}, {"status": "affected", "version": "9.16.3.15"}, {"status": "affected", "version": "9.16.3.19"}, {"status": "affected", "version": "9.16.3.23"}, {"status": "affected", "version": "9.16.4"}, {"status": "affected", "version": "9.16.4.9"}, {"status": "affected", "version": "9.16.4.14"}, {"status": "affected", "version": "9.16.4.18"}, {"status": "affected", "version": "9.16.4.19"}, {"status": "affected", "version": "9.16.4.27"}, {"status": "affected", "version": "9.16.4.38"}, {"status": "affected", "version": "9.16.4.39"}, {"status": "affected", "version": "9.16.4.42"}, {"status": "affected", "version": "9.16.4.48"}, {"status": "affected", "version": "9.16.4.55"}, {"status": "affected", "version": "9.16.4.57"}, {"status": "affected", "version": 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"9.18.4.50"}, {"status": "affected", "version": "9.18.4.52"}, {"status": "affected", "version": "9.18.4.53"}, {"status": "affected", "version": "9.18.4.57"}, {"status": "affected", "version": "9.18.4.66"}, {"status": "affected", "version": "9.19.1"}, {"status": "affected", "version": "9.19.1.5"}, {"status": "affected", "version": "9.19.1.9"}, {"status": "affected", "version": "9.19.1.12"}, {"status": "affected", "version": "9.19.1.18"}, {"status": "affected", "version": "9.19.1.22"}, {"status": "affected", "version": "9.19.1.24"}, {"status": "affected", "version": "9.19.1.27"}, {"status": "affected", "version": "9.19.1.28"}, {"status": "affected", "version": "9.19.1.31"}, {"status": "affected", "version": "9.19.1.37"}, {"status": "affected", "version": "9.19.1.38"}, {"status": "affected", "version": "9.19.1.42"}, {"status": "affected", "version": "9.20.1"}, {"status": "affected", "version": "9.20.1.5"}, {"status": "affected", "version": "9.20.2"}, {"status": "affected", "version": "9.20.2.10"}, {"status": "affected", "version": "9.20.2.21"}, {"status": "affected", "version": "9.20.2.22"}, {"status": "affected", "version": "9.20.3"}, {"status": "affected", "version": "9.20.3.4"}, {"status": "affected", "version": "9.20.3.7"}, {"status": "affected", "version": "9.20.3.9"}, {"status": "affected", "version": "9.20.3.10"}, {"status": "affected", "version": "9.20.3.13"}, {"status": "affected", "version": "9.20.3.16"}, {"status": "affected", "version": "9.20.3.20"}, {"status": "affected", "version": "9.20.4"}, {"status": "affected", "version": "9.20.4.7"}, {"status": "affected", "version": "9.22.1.1"}, {"status": "affected", "version": "9.22.1.3"}, {"status": "affected", "version": "9.22.1.2"}, {"status": "affected", "version": "9.22.1.6"}, {"status": "affected", "version": "9.22.2"}, {"status": "affected", "version": "9.22.2.4"}, {"status": "affected", "version": "9.22.2.9"}, {"status": "affected", "version": "9.22.2.13"}, {"status": "affected", "version": "9.23.1"}, {"status": "affected", "version": "9.23.1.3"}, {"status": "affected", "version": "9.23.1.7"}, {"status": "affected", "version": "9.23.1.13"}]unknownCiscoCisco Secure Firewall Threat Defense (FTD) Software
[{"status": "affected", "version": "6.2.3"}, {"status": "affected", "version": "6.2.3.1"}, {"status": "affected", "version": "6.2.3.2"}, {"status": "affected", "version": "6.2.3.3"}, {"status": "affected", "version": "6.2.3.4"}, {"status": "affected", "version": "6.2.3.5"}, {"status": "affected", "version": "6.2.3.6"}, {"status": "affected", "version": "6.2.3.7"}, {"status": "affected", "version": "6.2.3.8"}, {"status": "affected", "version": "6.2.3.10"}, {"status": "affected", "version": "6.2.3.11"}, {"status": "affected", "version": "6.2.3.9"}, {"status": "affected", "version": "6.2.3.12"}, {"status": "affected", "version": "6.2.3.13"}, {"status": "affected", "version": "6.2.3.14"}, {"status": "affected", "version": "6.2.3.15"}, {"status": "affected", "version": "6.2.3.16"}, {"status": "affected", "version": "6.2.3.17"}, {"status": "affected", "version": "6.2.3.18"}, {"status": "affected", "version": "6.6.0"}, {"status": "affected", "version": "6.6.0.1"}, {"status": "affected", "version": "6.6.1"}, {"status": "affected", "version": "6.6.3"}, {"status": "affected", "version": "6.6.4"}, {"status": "affected", "version": "6.6.5"}, {"status": "affected", "version": "6.6.5.1"}, {"status": "affected", "version": "6.6.5.2"}, {"status": "affected", "version": "6.6.7"}, {"status": "affected", "version": "6.6.7.1"}, {"status": "affected", "version": "6.6.7.2"}, {"status": "affected", "version": "6.4.0"}, {"status": "affected", "version": "6.4.0.1"}, {"status": "affected", "version": "6.4.0.3"}, {"status": "affected", "version": "6.4.0.2"}, {"status": "affected", "version": "6.4.0.4"}, {"status": "affected", "version": "6.4.0.5"}, {"status": "affected", "version": "6.4.0.6"}, {"status": "affected", "version": "6.4.0.7"}, {"status": "affected", "version": "6.4.0.8"}, {"status": "affected", "version": "6.4.0.9"}, {"status": "affected", "version": "6.4.0.10"}, {"status": "affected", "version": "6.4.0.11"}, {"status": "affected", "version": "6.4.0.12"}, {"status": "affected", "version": "6.4.0.13"}, {"status": "affected", "version": "6.4.0.14"}, {"status": "affected", "version": "6.4.0.15"}, {"status": "affected", "version": "6.4.0.16"}, {"status": "affected", "version": "6.4.0.17"}, {"status": "affected", "version": "6.4.0.18"}, {"status": "affected", "version": "7.0.0"}, {"status": "affected", "version": "7.0.0.1"}, {"status": "affected", "version": "7.0.1"}, {"status": "affected", "version": "7.0.1.1"}, {"status": "affected", "version": "7.0.2"}, {"status": "affected", "version": "7.0.2.1"}, {"status": "affected", "version": "7.0.3"}, {"status": "affected", "version": "7.0.4"}, {"status": "affected", "version": "7.0.5"}, {"status": "affected", "version": "7.0.6"}, {"status": "affected", "version": "7.0.6.1"}, {"status": "affected", "version": "7.0.6.2"}, {"status": "affected", "version": "7.0.6.3"}, {"status": "affected", "version": "7.0.7"}, {"status": "affected", "version": "7.0.8"}, {"status": "affected", "version": "7.1.0"}, {"status": "affected", "version": "7.1.0.1"}, {"status": "affected", "version": "7.1.0.2"}, {"status": "affected", "version": "7.1.0.3"}, {"status": "affected", "version": "7.2.0"}, {"status": "affected", "version": "7.2.0.1"}, {"status": "affected", "version": "7.2.1"}, {"status": "affected", "version": "7.2.2"}, {"status": "affected", "version": "7.2.3"}, {"status": "affected", "version": "7.2.4"}, {"status": "affected", "version": "7.2.4.1"}, {"status": "affected", "version": "7.2.5"}, {"status": "affected", "version": "7.2.5.1"}, {"status": "affected", "version": "7.2.6"}, {"status": "affected", "version": "7.2.7"}, {"status": "affected", "version": "7.2.5.2"}, {"status": "affected", "version": "7.2.8"}, {"status": "affected", "version": "7.2.8.1"}, {"status": "affected", "version": "7.2.9"}, {"status": "affected", "version": "7.2.10"}, {"status": "affected", "version": "7.3.0"}, {"status": "affected", "version": "7.3.1"}, {"status": "affected", "version": "7.3.1.1"}, {"status": "affected", "version": "7.3.1.2"}, {"status": "affected", "version": "7.4.0"}, {"status": "affected", "version": "7.4.1"}, {"status": "affected", "version": "7.4.1.1"}, {"status": "affected", "version": "7.4.2"}, {"status": "affected", "version": "7.4.2.1"}, {"status": "affected", "version": "7.4.2.2"}, {"status": "affected", "version": "7.4.2.3"}, {"status": "affected", "version": "7.6.0"}, {"status": "affected", "version": "7.6.1"}, {"status": "affected", "version": "7.6.2"}, {"status": "affected", "version": "7.7.0"}, {"status": "affected", "version": "7.7.10"}]unknownUnknown vendorUnknown product
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*; start including 7.0.0; end excluding 7.0.8.1supportedUnknown vendorUnknown product
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*; start including 7.1.0; end excluding 7.2.10.2supportedUnknown vendorUnknown product
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*; start including 7.3.0; end excluding 7.4.2.4supportedUnknown vendorUnknown product
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*; start including 7.6.0; end excluding 7.6.2.1supportedUnknown vendorUnknown product
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*; start including 7.7.0; end excluding 7.7.10.1supportedUnknown vendorUnknown product
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*; start including 9.12; end excluding 9.12.4.72supportedUnknown vendorUnknown product
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*; start including 9.14; end excluding 9.14.4.28supportedUnknown vendorUnknown product
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*; start including 9.16; end excluding 9.16.4.85supportedUnknown vendorUnknown product
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*; start including 9.17.0; end excluding 9.18.4.67supportedUnknown vendorUnknown product
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*; start including 9.19; end excluding 9.20.4.10supportedUnknown vendorUnknown product
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*; start including 9.22; end excluding 9.22.2.14supportedUnknown vendorUnknown product
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*; start including 9.23; end excluding 9.23.1.19supportedAssessments
CVSS by origin
nvd@nist.govCVSS 3.1 · role Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Hpsirt@cisco.comCVSS 3.1 · role Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NciscoCVSS 3.1 · role unknown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NLimitations and unknowns
- KEV membership is authoritative for the catalog, not proof of exposure in any environment.
- EPSS is a dated model probability and not an individual-environment prediction.
- Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
- NVD-carried upstream facts remain derivative and are not independent corroboration.
- Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
- NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
- Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
- Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.