CVE-2025-20192 (GCVE-0-2025-20192)

Vulnerability from cvelistv5 – Published: 2025-05-07 17:36 – Updated: 2025-05-07 19:43
VLAI
Summary
A vulnerability in the Internet Key Exchange version 1 (IKEv1) implementation of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The attacker must have valid IKEv1 VPN credentials to exploit this vulnerability. This vulnerability is due to improper validation of IKEv1 phase 2 parameters before the IPsec security association creation request is handed off to the hardware cryptographic accelerator of an affected device. An attacker could exploit this vulnerability by sending crafted IKEv1 messages to the affected device. A successful exploit could allow the attacker to cause the device to reload.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-07 18:56 UTC
CWE
  • CWE-232 - Improper Handling of Undefined Values
Impacted products
Vendor Product Version
Cisco Cisco IOS XE Software Affected: 3.13.0S
Affected: 3.13.1S
Affected: 3.13.2S
Affected: 3.13.3S
Affected: 3.13.4S
Affected: 3.13.5S
Affected: 3.13.6S
Affected: 3.13.7S
Affected: 3.13.6aS
Affected: 3.13.8S
Affected: 3.13.9S
Affected: 3.13.10S
Affected: 3.14.0S
Affected: 3.14.1S
Affected: 3.14.2S
Affected: 3.14.3S
Affected: 3.14.4S
Affected: 3.15.0S
Affected: 3.15.1S
Affected: 3.15.2S
Affected: 3.15.1cS
Affected: 3.15.3S
Affected: 3.15.4S
Affected: 3.16.0S
Affected: 3.16.1aS
Affected: 3.16.2S
Affected: 3.16.0cS
Affected: 3.16.3S
Affected: 3.16.4aS
Affected: 3.16.4bS
Affected: 3.16.5S
Affected: 3.16.4dS
Affected: 3.16.6S
Affected: 3.16.7S
Affected: 3.16.6bS
Affected: 3.16.7aS
Affected: 3.16.7bS
Affected: 3.16.8S
Affected: 3.16.9S
Affected: 3.16.10S
Affected: 3.17.0S
Affected: 3.17.1S
Affected: 3.17.2S
Affected: 3.17.3S
Affected: 3.17.4S
Affected: 16.2.1
Affected: 16.2.2
Affected: 16.3.1
Affected: 16.3.2
Affected: 16.3.3
Affected: 16.3.1a
Affected: 16.3.4
Affected: 16.3.5
Affected: 16.3.6
Affected: 16.3.7
Affected: 16.3.8
Affected: 16.3.9
Affected: 16.3.10
Affected: 16.3.11
Affected: 16.4.1
Affected: 16.4.2
Affected: 16.4.3
Affected: 16.5.1
Affected: 16.5.1b
Affected: 16.5.2
Affected: 16.5.3
Affected: 3.18.2aSP
Affected: 16.6.1
Affected: 16.6.2
Affected: 16.6.3
Affected: 16.6.4
Affected: 16.6.5
Affected: 16.6.6
Affected: 16.6.7
Affected: 16.6.8
Affected: 16.6.9
Affected: 16.6.10
Affected: 16.7.1
Affected: 16.7.2
Affected: 16.7.3
Affected: 16.8.1
Affected: 16.8.1s
Affected: 16.8.2
Affected: 16.8.3
Affected: 16.9.1
Affected: 16.9.2
Affected: 16.9.1s
Affected: 16.9.3
Affected: 16.9.4
Affected: 16.9.5
Affected: 16.9.6
Affected: 16.9.7
Affected: 16.9.8
Affected: 16.10.1
Affected: 16.10.1a
Affected: 16.10.1b
Affected: 16.10.1s
Affected: 16.10.1e
Affected: 16.10.2
Affected: 16.10.3
Affected: 16.11.1
Affected: 16.11.1a
Affected: 16.11.2
Affected: 16.11.1s
Affected: 16.12.1
Affected: 16.12.1s
Affected: 16.12.1a
Affected: 16.12.1c
Affected: 16.12.2
Affected: 16.12.3
Affected: 16.12.8
Affected: 16.12.2s
Affected: 16.12.4
Affected: 16.12.3s
Affected: 16.12.5
Affected: 16.12.6
Affected: 16.12.7
Affected: 17.1.1
Affected: 17.1.1s
Affected: 17.1.1t
Affected: 17.1.3
Affected: 17.2.1
Affected: 17.2.1r
Affected: 17.2.1v
Affected: 17.2.2
Affected: 17.2.3
Affected: 17.3.1
Affected: 17.3.2
Affected: 17.3.3
Affected: 17.3.1a
Affected: 17.3.4
Affected: 17.3.5
Affected: 17.3.4a
Affected: 17.3.6
Affected: 17.3.7
Affected: 17.3.8
Affected: 17.3.8a
Affected: 17.4.1
Affected: 17.4.2
Affected: 17.4.1a
Affected: 17.4.1b
Affected: 17.5.1
Affected: 17.5.1a
Affected: 17.6.1
Affected: 17.6.2
Affected: 17.6.1a
Affected: 17.6.3
Affected: 17.6.1y
Affected: 17.6.3a
Affected: 17.6.4
Affected: 17.6.5
Affected: 17.6.6
Affected: 17.6.6a
Affected: 17.6.5a
Affected: 17.6.7
Affected: 17.6.8
Affected: 17.6.8a
Affected: 17.7.1
Affected: 17.7.1a
Affected: 17.7.2
Affected: 17.10.1
Affected: 17.10.1a
Affected: 17.8.1
Affected: 17.8.1a
Affected: 17.9.1
Affected: 17.9.2
Affected: 17.9.1a
Affected: 17.9.3
Affected: 17.9.2a
Affected: 17.9.3a
Affected: 17.9.4
Affected: 17.9.5
Affected: 17.9.4a
Affected: 17.9.5a
Affected: 17.9.5b
Affected: 17.9.5e
Affected: 17.9.5f
Affected: 17.11.1
Affected: 17.11.1a
Affected: 17.12.1
Affected: 17.12.1a
Affected: 17.12.2
Affected: 17.12.3
Affected: 17.12.2a
Affected: 17.12.3a
Affected: 17.13.1
Affected: 17.13.1a
Affected: 17.14.1
Affected: 17.14.1a
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            {
              "status": "affected",
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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
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            {
              "status": "affected",
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            },
            {
              "status": "affected",
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            {
              "status": "affected",
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            {
              "status": "affected",
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          "lang": "en",
          "value": "A vulnerability in the Internet Key Exchange version 1 (IKEv1) implementation of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The attacker must have valid IKEv1 VPN credentials to exploit this vulnerability.\r\n\r This vulnerability is due to improper validation of IKEv1 phase 2 parameters before the IPsec security association creation request is handed off to the hardware cryptographic accelerator of an affected device. An attacker could exploit this vulnerability by sending crafted IKEv1 messages to the affected device. A successful exploit could allow the attacker to cause the device to reload."
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          "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
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        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
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          "name": "cisco-sa-iosxe-ikev1-dos-XHk3HzFC",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ikev1-dos-XHk3HzFC"
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    "datePublished": "2025-05-07T17:36:16.366Z",
    "dateReserved": "2024-10-10T19:15:13.226Z",
    "dateUpdated": "2025-05-07T19:43:26.883Z",
    "state": "PUBLISHED"
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            "value": "A vulnerability in the Internet Key Exchange version 1 (IKEv1) implementation of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The attacker must have valid IKEv1 VPN credentials to exploit this vulnerability.\r\n\r This vulnerability is due to improper validation of IKEv1 phase 2 parameters before the IPsec security association creation request is handed off to the hardware cryptographic accelerator of an affected device. An attacker could exploit this vulnerability by sending crafted IKEv1 messages to the affected device. A successful exploit could allow the attacker to cause the device to reload."
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            "value": "Una vulnerabilidad en la implementaci\u00f3n de Intercambio de Claves por Internet versi\u00f3n 1 (IKEv1) del software Cisco IOS XE podr\u00eda permitir que un atacante remoto autenticado provoque una denegaci\u00f3n de servicio (DoS). El atacante debe tener credenciales VPN IKEv1 v\u00e1lidas para explotar esta vulnerabilidad. Esta vulnerabilidad se debe a una validaci\u00f3n incorrecta de los par\u00e1metros de fase 2 de IKEv1 antes de que la solicitud de creaci\u00f3n de la asociaci\u00f3n de seguridad IPsec se transfiera al acelerador criptogr\u00e1fico de hardware de un dispositivo afectado. Un atacante podr\u00eda explotar esta vulnerabilidad enviando mensajes IKEv1 manipulados al dispositivo afectado. Una explotaci\u00f3n exitosa podr\u00eda permitir al atacante provocar la recarga del dispositivo."
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          "references": [
            {
              "name": "cisco-sa-iosxe-ikev1-dos-XHk3HzFC",
              "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ikev1-dos-XHk3HzFC"
            }
          ],
          "source": {
            "advisory": "cisco-sa-iosxe-ikev1-dos-XHk3HzFC",
            "defects": [
              "CSCwi26594"
            ],
            "discovery": "INTERNAL"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "assignerShortName": "cisco",
        "cveId": "CVE-2025-20192",
        "datePublished": "2025-05-07T17:36:16.366Z",
        "dateReserved": "2024-10-10T19:15:13.226Z",
        "dateUpdated": "2025-05-07T19:43:26.883Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Taxonomy of the tags.


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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