cve-2025-20243
Vulnerability from cvelistv5
Published
2025-08-14 16:29
Modified
2025-08-14 19:19
Severity ?
EPSS score ?
Summary
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability
References
Impacted products
{ "containers": { "adp": [ { "metrics": [ { "other": { "content": { "id": "CVE-2025-20243", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "timestamp": "2025-08-14T18:39:09.843152Z", "version": "2.0.3" }, "type": "ssvc" } } ], "providerMetadata": { "dateUpdated": "2025-08-14T19:19:56.383Z", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP" }, "title": "CISA ADP Vulnrichment" } ], "cna": { "affected": [ { "defaultStatus": "unknown", "product": "Cisco Adaptive Security Appliance (ASA) Software", "vendor": "Cisco", "versions": [ { "status": "affected", "version": "9.12.3" }, { "status": "affected", "version": "9.8.3" }, { "status": "affected", "version": "9.12.1" }, { "status": "affected", "version": "9.8.1" }, { "status": "affected", "version": "9.12.2" }, { "status": "affected", "version": "9.8.2.45" }, { "status": "affected", "version": "9.8.2" }, { "status": "affected", "version": "9.8.4" }, { "status": "affected", "version": "9.14.1" }, { "status": "affected", "version": "9.12.4" }, { "status": "affected", "version": "9.8.2.26" }, { "status": "affected", "version": "9.8.2.24" }, { "status": "affected", "version": "9.8.2.15" }, { "status": "affected", "version": "9.8.2.14" }, { "status": "affected", "version": "9.8.2.35" }, { "status": "affected", "version": "9.8.2.20" }, { "status": "affected", "version": "9.8.2.8" }, { "status": "affected", "version": "9.8.2.17" }, { "status": "affected", "version": "9.8.2.28" }, { "status": "affected", "version": "9.8.2.33" }, { "status": "affected", "version": "9.8.2.38" }, { "status": "affected", "version": "9.8.4.25" }, { "status": "affected", "version": "9.12.3.2" }, { "status": "affected", "version": "9.12.3.7" }, { "status": "affected", "version": "9.8.3.18" }, { "status": "affected", "version": "9.8.3.14" }, { "status": "affected", "version": "9.8.4.15" }, { "status": "affected", "version": "9.8.4.8" }, { "status": "affected", "version": "9.8.1.7" }, { "status": "affected", "version": "9.8.3.29" }, { "status": "affected", "version": "9.14.1.10" }, { "status": "affected", "version": "9.12.2.5" }, { "status": "affected", "version": "9.8.4.22" }, { "status": "affected", "version": "9.12.3.12" }, { "status": "affected", "version": "9.8.4.7" }, { "status": "affected", "version": "9.8.4.17" }, { "status": "affected", "version": "9.8.3.16" }, { "status": "affected", "version": "9.8.4.20" }, { "status": "affected", "version": "9.8.3.11" }, { "status": "affected", "version": "9.12.1.3" }, { "status": "affected", "version": "9.8.4.3" }, { "status": "affected", "version": "9.12.2.4" }, { "status": "affected", "version": "9.8.4.12" }, { "status": "affected", "version": "9.12.1.2" }, { "status": "affected", "version": "9.8.3.26" }, { "status": "affected", "version": "9.8.1.5" }, { "status": "affected", "version": "9.12.2.9" }, { "status": "affected", "version": "9.12.3.9" }, { "status": "affected", "version": "9.8.3.21" }, { "status": "affected", "version": "9.8.4.10" }, { "status": "affected", "version": "9.12.2.1" }, { "status": "affected", "version": "9.12.4.2" }, { "status": "affected", "version": "9.14.1.6" }, { "status": "affected", "version": "9.8.3.8" }, { "status": "affected", "version": "9.14.1.15" }, { "status": "affected", "version": "9.14.1.19" }, { "status": "affected", "version": "9.8.4.26" }, { "status": "affected", "version": "9.12.4.4" }, { "status": "affected", "version": "9.14.1.30" }, { "status": "affected", "version": "9.8.4.29" }, { "status": "affected", "version": "9.12.4.7" }, { "status": "affected", "version": "9.14.2" }, { "status": "affected", "version": "9.12.4.8" }, { "status": "affected", "version": "9.8.4.32" }, { "status": "affected", "version": "9.12.4.10" }, { "status": "affected", "version": "9.14.2.4" }, { "status": "affected", "version": "9.14.2.8" }, { "status": "affected", "version": "9.12.4.13" }, { "status": "affected", "version": "9.8.4.33" }, { "status": "affected", "version": "9.14.2.13" }, { "status": "affected", "version": "9.8.4.34" }, { "status": "affected", "version": "9.12.4.18" }, { "status": "affected", "version": "9.8.4.35" }, { "status": "affected", "version": "9.14.2.15" }, { "status": "affected", "version": "9.12.4.24" }, { "status": "affected", "version": "9.16.1" }, { "status": "affected", "version": "9.8.4.39" }, { "status": "affected", "version": "9.14.3" }, { "status": "affected", "version": "9.12.4.26" }, { "status": "affected", "version": "9.16.1.28" }, { "status": "affected", "version": "9.14.3.1" }, { "status": "affected", "version": "9.12.4.29" }, { "status": "affected", "version": "9.14.3.9" }, { "status": "affected", "version": "9.16.2" }, { "status": "affected", "version": "9.12.4.30" }, { "status": "affected", "version": "9.16.2.3" }, { "status": "affected", "version": "9.8.4.40" }, { "status": "affected", "version": "9.14.3.11" }, { "status": "affected", "version": "9.12.4.35" }, { "status": "affected", "version": "9.8.4.41" }, { "status": "affected", "version": "9.14.3.13" }, { "status": "affected", "version": "9.16.2.7" }, { "status": "affected", "version": "9.12.4.37" }, { "status": "affected", "version": "9.14.3.15" }, { "status": "affected", "version": "9.17.1" }, { "status": "affected", "version": "9.16.2.11" }, { "status": "affected", "version": "9.14.3.18" }, { "status": "affected", "version": "9.16.2.13" }, { "status": "affected", "version": "9.12.4.39" }, { "status": "affected", "version": "9.12.4.38" }, { "status": "affected", "version": "9.8.4.43" }, { "status": "affected", "version": "9.14.4" }, { "status": "affected", "version": "9.16.2.14" }, { "status": "affected", "version": "9.17.1.7" }, { "status": "affected", "version": "9.12.4.40" }, { "status": "affected", "version": "9.16.3.3" }, { "status": "affected", "version": "9.14.4.6" }, { "status": "affected", "version": "9.16.3" }, { "status": "affected", "version": "9.16.3.14" }, { "status": "affected", "version": "9.17.1.9" }, { "status": "affected", "version": "9.14.4.7" }, { "status": "affected", "version": "9.12.4.41" }, { "status": "affected", "version": "9.17.1.10" }, { "status": "affected", "version": "9.8.4.44" }, { "status": "affected", "version": "9.18.1" }, { "status": "affected", "version": "9.12.4.47" }, { "status": "affected", "version": "9.14.4.12" }, { "status": "affected", "version": "9.16.3.15" }, { "status": "affected", "version": "9.18.1.3" }, { "status": "affected", "version": "9.17.1.11" }, { "status": "affected", "version": "9.12.4.48" }, { "status": "affected", "version": "9.14.4.13" }, { "status": "affected", "version": "9.18.2" }, { "status": "affected", "version": "9.16.3.19" }, { "status": "affected", "version": "9.17.1.13" }, { "status": "affected", "version": "9.12.4.50" }, { "status": "affected", "version": "9.14.4.14" }, { "status": "affected", "version": "9.17.1.15" }, { "status": "affected", "version": "9.8.4.45" }, { "status": "affected", "version": "9.12.4.52" }, { "status": "affected", "version": "9.14.4.15" }, { "status": "affected", "version": "9.16.3.23" }, { "status": "affected", "version": "9.18.2.5" }, { "status": "affected", "version": "9.16.4" }, { "status": "affected", "version": "9.12.4.54" }, { "status": "affected", "version": "9.14.4.17" }, { "status": "affected", "version": "9.8.4.46" }, { "status": "affected", "version": "9.17.1.20" }, { "status": "affected", "version": "9.18.2.7" }, { "status": "affected", "version": "9.19.1" }, { "status": "affected", "version": "9.16.4.9" }, { "status": "affected", "version": "9.12.4.55" }, { "status": "affected", "version": "9.18.2.8" }, { "status": "affected", "version": "9.14.4.22" }, { "status": "affected", "version": "9.16.4.14" }, { "status": "affected", "version": "9.8.4.48" }, { "status": "affected", "version": "9.18.3" }, { "status": "affected", "version": "9.19.1.5" }, { "status": "affected", "version": "9.14.4.23" }, { "status": "affected", "version": "9.12.4.56" }, { "status": "affected", "version": "9.16.4.18" }, { "status": "affected", "version": "9.17.1.30" }, { "status": "affected", "version": "9.19.1.9" }, { "status": "affected", "version": "9.18.3.39" }, { "status": "affected", "version": "9.16.4.19" }, { "status": "affected", "version": "9.12.4.58" }, { "status": "affected", "version": "9.19.1.12" }, { "status": "affected", "version": "9.18.3.46" }, { "status": "affected", "version": "9.16.4.27" }, { "status": "affected", "version": "9.19.1.18" }, { "status": "affected", "version": "9.18.3.53" }, { "status": "affected", "version": "9.18.3.55" }, { "status": "affected", "version": "9.16.4.38" }, { "status": "affected", "version": "9.17.1.33" }, { "status": "affected", "version": "9.12.4.62" }, { "status": "affected", "version": "9.16.4.39" }, { "status": "affected", "version": "9.18.3.56" }, { "status": "affected", "version": "9.20.1" }, { "status": "affected", "version": "9.16.4.42" }, { "status": "affected", "version": "9.19.1.22" }, { "status": "affected", "version": "9.18.4" }, { "status": "affected", "version": "9.20.1.5" }, { "status": "affected", "version": "9.18.4.5" }, { "status": "affected", "version": "9.19.1.24" }, { "status": "affected", "version": "9.16.4.48" }, { "status": "affected", "version": "9.18.4.8" }, { "status": "affected", "version": "9.20.2" }, { "status": "affected", "version": "9.19.1.27" }, { "status": "affected", "version": "9.12.4.65" }, { "status": "affected", "version": "9.16.4.55" }, { "status": "affected", "version": "9.18.4.22" }, { "status": "affected", "version": "9.20.2.10" }, { "status": "affected", "version": "9.16.4.57" }, { "status": "affected", "version": "9.19.1.28" }, { "status": "affected", "version": "9.17.1.39" }, { "status": "affected", "version": "9.12.4.67" }, { "status": "affected", "version": "9.14.4.24" }, { "status": "affected", "version": "9.18.4.24" }, { "status": "affected", "version": "9.20.2.21" }, { "status": "affected", "version": "9.16.4.61" }, { "status": "affected", "version": "9.19.1.31" }, { "status": "affected", "version": "9.18.4.29" }, { "status": "affected", "version": "9.20.2.22" }, { "status": "affected", "version": "9.16.4.62" }, { "status": "affected", "version": "9.18.4.34" }, { "status": "affected", "version": "9.20.3" }, { "status": "affected", "version": "9.16.4.67" }, { "status": "affected", "version": "9.16.4.70" }, { "status": "affected", "version": "9.18.4.40" }, { "status": "affected", "version": "9.23.1" }, { "status": "affected", "version": "9.22.1.1" }, { "status": "affected", "version": "9.16.4.71" }, { "status": "affected", "version": "9.20.3.4" }, { "status": "affected", "version": "9.18.4.47" }, { "status": "affected", "version": "9.20.3.7" }, { "status": "affected", "version": "9.17.1.45" }, { "status": "affected", "version": "9.19.1.37" }, { "status": "affected", "version": "9.17.1.46" }, { "status": "affected", "version": "9.16.4.76" }, { "status": "affected", "version": "9.20.3.9" }, { "status": "affected", "version": "9.19.1.38" }, { "status": "affected", "version": "9.18.4.50" }, { "status": "affected", "version": "9.22.1.3" }, { "status": "affected", "version": "9.20.3.10" }, { "status": "affected", "version": "9.22.1.2" }, { "status": "affected", "version": "9.18.4.52" }, { "status": "affected", "version": "9.20.3.13" }, { "status": "affected", "version": "9.22.1.6" }, { "status": "affected", "version": "9.18.4.53" }, { "status": "affected", "version": "9.16.4.82" } ] }, { "defaultStatus": "unknown", "product": "Cisco Firepower Threat Defense Software", "vendor": "Cisco", "versions": [ { "status": "affected", "version": "6.2.3.14" }, { "status": "affected", "version": "6.4.0.1" }, { "status": "affected", "version": "6.2.3.7" }, { "status": "affected", "version": "6.2.3" }, { "status": "affected", "version": "6.4.0.2" }, { "status": "affected", "version": "6.2.3.9" }, { "status": "affected", "version": "6.2.3.1" }, { "status": "affected", "version": "6.2.3.2" }, { "status": "affected", "version": "6.4.0.5" }, { "status": "affected", "version": "6.2.3.10" }, { "status": "affected", "version": "6.4.0" }, { "status": "affected", "version": "6.4.0.3" }, { "status": "affected", "version": "6.2.3.6" }, { "status": "affected", "version": "6.4.0.4" }, { "status": "affected", "version": "6.2.3.15" }, { "status": "affected", "version": "6.2.3.5" }, { "status": "affected", "version": "6.2.3.4" }, { "status": "affected", "version": "6.2.3.3" }, { "status": "affected", "version": "6.2.3.8" }, { "status": "affected", "version": "6.4.0.6" }, { "status": "affected", "version": "6.2.3.11" }, { "status": "affected", "version": "6.2.3.12" }, { "status": "affected", "version": "6.2.3.13" }, { "status": "affected", "version": "6.4.0.7" }, { "status": "affected", "version": "6.4.0.8" }, { "status": "affected", "version": "6.6.0" }, { "status": "affected", "version": "6.4.0.9" }, { "status": "affected", "version": "6.2.3.16" }, { "status": "affected", "version": "6.6.0.1" }, { "status": "affected", "version": "6.6.1" }, { "status": "affected", "version": "6.4.0.10" }, { "status": "affected", "version": "6.4.0.11" }, { "status": "affected", "version": "6.6.3" }, { "status": "affected", "version": "6.6.4" }, { "status": "affected", "version": "6.4.0.12" }, { "status": "affected", "version": "7.0.0" }, { "status": "affected", "version": "6.2.3.17" }, { "status": "affected", "version": "7.0.0.1" }, { "status": "affected", "version": "6.6.5" }, { "status": "affected", "version": "7.0.1" }, { "status": "affected", "version": "7.1.0" }, { "status": "affected", "version": "6.4.0.13" }, { "status": "affected", "version": "6.6.5.1" }, { "status": "affected", "version": "6.2.3.18" }, { "status": "affected", "version": "7.0.1.1" }, { "status": "affected", "version": "6.4.0.14" }, { "status": "affected", "version": "7.1.0.1" }, { "status": "affected", "version": "6.6.5.2" }, { "status": "affected", "version": "7.0.2" }, { "status": "affected", "version": "6.4.0.15" }, { "status": "affected", "version": "7.2.0" }, { "status": "affected", "version": "7.0.2.1" }, { "status": "affected", "version": "7.0.3" }, { "status": "affected", "version": "6.6.7" }, { "status": "affected", "version": "7.1.0.2" }, { "status": "affected", "version": "7.2.0.1" }, { "status": "affected", "version": "7.0.4" }, { "status": "affected", "version": "7.2.1" }, { "status": "affected", "version": "7.0.5" }, { "status": "affected", "version": "6.4.0.16" }, { "status": "affected", "version": "7.3.0" }, { "status": "affected", "version": "7.2.2" }, { "status": "affected", "version": "7.2.3" }, { "status": "affected", "version": "6.6.7.1" }, { "status": "affected", "version": "7.3.1" }, { "status": "affected", "version": "7.1.0.3" }, { "status": "affected", "version": "7.2.4" }, { "status": "affected", "version": "7.0.6" }, { "status": "affected", "version": "7.2.5" }, { "status": "affected", "version": "7.2.4.1" }, { "status": "affected", "version": "7.3.1.1" }, { "status": "affected", "version": "7.4.0" }, { "status": "affected", "version": "6.4.0.17" }, { "status": "affected", "version": "7.0.6.1" }, { "status": "affected", "version": "7.2.5.1" }, { "status": "affected", "version": "7.4.1" }, { "status": "affected", "version": "7.2.6" }, { "status": "affected", "version": "7.0.6.2" }, { "status": "affected", "version": "7.4.1.1" }, { "status": "affected", "version": "6.6.7.2" }, { "status": "affected", "version": "6.4.0.18" }, { "status": "affected", "version": "7.2.7" }, { "status": "affected", "version": "7.2.5.2" }, { "status": "affected", "version": "7.3.1.2" }, { "status": "affected", "version": "7.2.8" }, { "status": "affected", "version": "7.6.0" }, { "status": "affected", "version": "7.4.2" }, { "status": "affected", "version": "7.2.8.1" }, { "status": "affected", "version": "7.0.6.3" }, { "status": "affected", "version": "7.4.2.1" }, { "status": "affected", "version": "7.2.9" }, { "status": "affected", "version": "7.0.7" }, { "status": "affected", "version": "7.7.0" }, { "status": "affected", "version": "7.4.2.2" } ] } ], "descriptions": [ { "lang": "en", "value": "A vulnerability in the management and VPN web servers of Cisco Secure Firewall ASA Software and Secure FTD Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a DoS condition.\r\n\r\nThis vulnerability is due to improper validation of user-supplied input on an interface with VPN web services. An attacker could exploit this vulnerability by sending crafted HTTP requests to a targeted web server on an affected device. A successful exploit could allow the attacker to cause a DoS condition when the device reloads." } ], "exploits": [ { "lang": "en", "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1" }, "format": "cvssV3_1" } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-835", "description": "Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)", "lang": "en", "type": "cwe" } ] } ], "providerMetadata": { "dateUpdated": "2025-08-14T16:29:21.309Z", "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco" }, "references": [ { "name": "cisco-sa-asaftd-vpn-dos-mfPekA6e", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-vpn-dos-mfPekA6e" } ], "source": { "advisory": "cisco-sa-asaftd-vpn-dos-mfPekA6e", "defects": [ "CSCwo15027" ], "discovery": "INTERNAL" }, "title": "Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability" } }, "cveMetadata": { "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "cveId": "CVE-2025-20243", "datePublished": "2025-08-14T16:29:21.309Z", "dateReserved": "2024-10-10T19:15:13.238Z", "dateUpdated": "2025-08-14T19:19:56.383Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2025-20243\",\"sourceIdentifier\":\"psirt@cisco.com\",\"published\":\"2025-08-14T17:15:38.137\",\"lastModified\":\"2025-08-15T13:12:51.217\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in the management and VPN web servers of Cisco Secure Firewall ASA Software and Secure FTD Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a DoS condition.\\r\\n\\r\\nThis vulnerability is due to improper validation of user-supplied input on an interface with VPN web services. An attacker could exploit this vulnerability by sending crafted HTTP requests to a targeted web server on an affected device. A successful exploit could allow the attacker to cause a DoS condition when the device reloads.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H\",\"baseScore\":8.6,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":4.0}]},\"weaknesses\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-835\"}]}],\"references\":[{\"url\":\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-vpn-dos-mfPekA6e\",\"source\":\"psirt@cisco.com\"}]}}" } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.