CVE-2026-20014 (GCVE-0-2026-20014)
Vulnerability from cvelistv5
Published
2026-03-04 17:21
Modified
2026-03-04 21:38
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Summary
A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, remote attacker with valid VPN user credentials to cause a DoS condition on an affected device that may also impact the availability of services to devices elsewhere in the network. This vulnerability is due to the improper processing of IKEv2 packets. An attacker could exploit this vulnerability by sending crafted, authenticated IKEv2 packets to an affected device. A successful exploit could allow the attacker to exhaust memory, causing the device to reload.
Impacted products
Vendor Product Version
Cisco Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 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: 9.18.4.66
Version: 9.18.4.67
Version: 9.18.4.68
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: 9.20.4
Version: 9.20.4.7
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: 9.22.2.4
Version: 9.22.2.9
Version: 9.23.1
Version: 9.23.1.3
Version: 9.23.1.7
Version: 9.23.1.13
Create a notification for this product.
   Cisco Cisco Secure Firewall Threat Defense (FTD) Software Version: 7.2.0
Version: 7.2.0.1
Version: 7.2.1
Version: 7.2.2
Version: 7.2.3
Version: 7.2.4
Version: 7.2.4.1
Version: 7.2.5
Version: 7.2.5.1
Version: 7.2.6
Version: 7.2.7
Version: 7.2.5.2
Version: 7.2.8
Version: 7.2.8.1
Version: 7.2.9
Version: 7.2.10
Version: 7.2.10.2
Version: 7.3.0
Version: 7.3.1
Version: 7.3.1.1
Version: 7.3.1.2
Version: 7.4.0
Version: 7.4.1
Version: 7.4.1.1
Version: 7.4.2
Version: 7.4.2.1
Version: 7.4.2.2
Version: 7.4.2.3
Version: 7.4.2.4
Version: 7.6.0
Version: 7.6.1
Version: 7.6.2
Version: 7.6.2.1
Version: 7.7.0
Version: 7.7.10
Version: 7.7.10.1
Create a notification for this product.
Show details on NVD website


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          "value": "A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, remote attacker with valid VPN user credentials to cause a DoS condition on an affected device that may also impact the availability of services to devices elsewhere in the network.\r\n\r This vulnerability is due to the improper processing of IKEv2 packets. An attacker could exploit this vulnerability by sending crafted, authenticated IKEv2 packets to an affected device. A successful exploit could allow the attacker to exhaust memory, causing the device to reload."
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            "baseScore": 7.7,
            "baseSeverity": "HIGH",
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        "shortName": "cisco"
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    "assignerShortName": "cisco",
    "cveId": "CVE-2026-20014",
    "datePublished": "2026-03-04T17:21:26.098Z",
    "dateReserved": "2025-10-08T11:59:15.351Z",
    "dateUpdated": "2026-03-04T21:38:38.947Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
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\"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\": \"9.23.1\"}, {\"status\": \"affected\", \"version\": \"9.23.1.3\"}, {\"status\": \"affected\", \"version\": \"9.23.1.7\"}, {\"status\": \"affected\", \"version\": \"9.23.1.13\"}]}, {\"vendor\": \"Cisco\", \"product\": \"Cisco Secure Firewall Threat Defense (FTD) Software\", \"versions\": [{\"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\": \"7.2.10.2\"}, {\"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-ikev2-dos-eBueGdEG\", \"name\": \"cisco-sa-asaftd-ikev2-dos-eBueGdEG\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, remote attacker with valid VPN user credentials to cause a DoS condition on an affected device that may also impact the availability of services to devices elsewhere in the network.\\r\\n\\r This vulnerability is due to the improper processing of IKEv2 packets. An attacker could exploit this vulnerability by sending crafted, authenticated IKEv2 packets to an affected device. A successful exploit could allow the attacker to exhaust memory, causing the device to reload.\"}], \"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\": \"2026-03-04T17:21:26.098Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-20014\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-03-04T21:38:38.947Z\", \"dateReserved\": \"2025-10-08T11:59:15.351Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2026-03-04T17:21:26.098Z\", \"assignerShortName\": \"cisco\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

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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.
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  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


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