CVE-2026-20105 (GCVE-0-2026-20105)
Vulnerability from cvelistv5
Published
2026-03-04 17:19
Modified
2026-03-04 21:34
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Summary
A vulnerability in the Remote Access SSL VPN functionality of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software could allow an authenticated, remote attacker with a valid VPN connection to exhaust device memory resulting in a denial of service (DoS) condition.This does not affect the management or MUS interfaces.
This vulnerability is due to trusting user input without validation. An attacker could exploit this vulnerability by sending crafted packets to the Remote Access SSL VPN server. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software |
Version: 9.12.1 Version: 9.12.1.2 Version: 9.12.1.3 Version: 9.12.2 Version: 9.12.2.4 Version: 9.12.2.5 Version: 9.12.2.9 Version: 9.12.3 Version: 9.12.3.2 Version: 9.12.3.7 Version: 9.12.4 Version: 9.12.3.12 Version: 9.12.3.9 Version: 9.12.2.1 Version: 9.12.4.2 Version: 9.12.4.4 Version: 9.12.4.7 Version: 9.12.4.10 Version: 9.12.4.13 Version: 9.12.4.8 Version: 9.12.4.18 Version: 9.12.4.24 Version: 9.12.4.26 Version: 9.12.4.29 Version: 9.12.4.30 Version: 9.12.4.35 Version: 9.12.4.37 Version: 9.12.4.38 Version: 9.12.4.39 Version: 9.12.4.40 Version: 9.12.4.41 Version: 9.12.4.47 Version: 9.12.4.48 Version: 9.12.4.50 Version: 9.12.4.52 Version: 9.12.4.54 Version: 9.12.4.55 Version: 9.12.4.56 Version: 9.12.4.58 Version: 9.12.4.62 Version: 9.12.4.65 Version: 9.12.4.67 Version: 9.16.1 Version: 9.16.1.28 Version: 9.16.2 Version: 9.16.2.3 Version: 9.16.2.7 Version: 9.16.2.11 Version: 9.16.2.13 Version: 9.16.2.14 Version: 9.16.3 Version: 9.16.3.3 Version: 9.16.3.14 Version: 9.16.3.15 Version: 9.16.3.19 Version: 9.16.3.23 Version: 9.16.4 Version: 9.16.4.9 Version: 9.16.4.14 Version: 9.16.4.19 Version: 9.16.4.27 Version: 9.16.4.38 Version: 9.16.4.39 Version: 9.16.4.42 Version: 9.16.4.48 Version: 9.16.4.55 Version: 9.16.4.57 Version: 9.16.4.61 Version: 9.16.4.62 Version: 9.16.4.67 Version: 9.16.4.70 Version: 9.16.4.71 Version: 9.16.4.76 Version: 9.16.4.82 Version: 9.16.4.84 Version: 9.17.1 Version: 9.17.1.7 Version: 9.17.1.9 Version: 9.17.1.10 Version: 9.17.1.11 Version: 9.17.1.13 Version: 9.17.1.15 Version: 9.17.1.20 Version: 9.17.1.30 Version: 9.17.1.33 Version: 9.17.1.39 Version: 9.17.1.45 Version: 9.17.1.46 Version: 9.18.1 Version: 9.18.1.3 Version: 9.18.2 Version: 9.18.2.5 Version: 9.18.2.7 Version: 9.18.2.8 Version: 9.18.3 Version: 9.18.3.39 Version: 9.18.3.46 Version: 9.18.3.53 Version: 9.18.3.55 Version: 9.18.3.56 Version: 9.18.4 Version: 9.18.4.5 Version: 9.18.4.8 Version: 9.18.4.22 Version: 9.18.4.24 Version: 9.18.4.29 Version: 9.18.4.34 Version: 9.18.4.40 Version: 9.18.4.47 Version: 9.18.4.50 Version: 9.18.4.52 Version: 9.18.4.53 Version: 9.18.4.57 Version: 9.19.1 Version: 9.19.1.5 Version: 9.19.1.9 Version: 9.19.1.12 Version: 9.19.1.18 Version: 9.19.1.22 Version: 9.19.1.24 Version: 9.19.1.27 Version: 9.19.1.28 Version: 9.19.1.31 Version: 9.19.1.37 Version: 9.19.1.38 Version: 9.19.1.42 Version: 9.20.1 Version: 9.20.1.5 Version: 9.20.2 Version: 9.20.2.10 Version: 9.20.2.21 Version: 9.20.2.22 Version: 9.20.3 Version: 9.20.3.4 Version: 9.20.3.7 Version: 9.20.3.9 Version: 9.20.3.10 Version: 9.20.3.13 Version: 9.20.3.16 Version: 9.20.3.20 Version: 9.22.1.1 Version: 9.22.1.3 Version: 9.22.1.2 Version: 9.22.1.6 Version: 9.22.2 Version: 9.23.1 Version: 9.23.1.3 |
|||||||
|
|||||||||
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"descriptions": [
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}
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\"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\": \"7.2.10.2\"}, {\"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\": \"7.4.2.4\"}, {\"status\": \"affected\", \"version\": \"7.6.0\"}, {\"status\": \"affected\", \"version\": \"7.6.1\"}, {\"status\": \"affected\", \"version\": \"7.6.2\"}, {\"status\": \"affected\", \"version\": \"7.6.2.1\"}, {\"status\": \"affected\", \"version\": \"7.7.0\"}, {\"status\": \"affected\", \"version\": \"7.7.10\"}, {\"status\": \"affected\", \"version\": \"7.7.10.1\"}]}], \"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.\"}], \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-vpn-m9sx6MbC\", \"name\": \"cisco-sa-asaftd-vpn-m9sx6MbC\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the Remote Access SSL VPN functionality of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software could allow an authenticated, remote attacker with a valid VPN connection to exhaust device memory resulting in a denial of service (DoS) condition.This does not affect the management or MUS interfaces.\\r\\n\\r This vulnerability is due to trusting user input without validation. An attacker could exploit this vulnerability by sending crafted packets to the Remote Access SSL VPN server. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-401\", \"description\": \"Missing Release of Memory after Effective Lifetime\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2026-03-04T17:19:47.938Z\"}}}",
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"dataType": "CVE_RECORD",
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}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
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