CVE-2025-20314 (GCVE-0-2025-20314)

Vulnerability from cvelistv5 – Published: 2025-09-24 17:53 – Updated: 2026-02-26 17:47
VLAI
Summary
A vulnerability in Cisco IOS XE Software could allow an authenticated, local attacker with level-15 privileges or an unauthenticated attacker with physical access to an affected device to execute persistent code at boot time and break the chain of trust. This vulnerability is due to improper validation of software packages. An attacker could exploit this vulnerability by placing a crafted file into a specific location on an affected device. A successful exploit could allow the attacker to execute persistent code on the underlying operating system. Because this vulnerability allows an attacker to bypass a major security feature of a device, Cisco has raised the Security Impact Rating (SIR) of this advisory from Medium to High.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-25 03:56 UTC
CWE
  • CWE-232 - Improper Handling of Undefined Values
Impacted products
Vendor Product Version CPE status
Cisco Cisco IOS XE Software Affected: 17.3.1
Affected: 17.3.2
Affected: 17.3.3
Affected: 17.3.1a
Affected: 17.3.1w
Affected: 17.3.2a
Affected: 17.3.1x
Affected: 17.3.1z
Affected: 17.3.4
Affected: 17.3.5
Affected: 17.3.4a
Affected: 17.3.6
Affected: 17.3.4b
Affected: 17.3.4c
Affected: 17.3.5a
Affected: 17.3.5b
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: 17.4.2a
Affected: 17.5.1
Affected: 17.5.1a
Affected: 17.6.1
Affected: 17.6.2
Affected: 17.6.1w
Affected: 17.6.1a
Affected: 17.6.1x
Affected: 17.6.3
Affected: 17.6.1y
Affected: 17.6.1z
Affected: 17.6.3a
Affected: 17.6.4
Affected: 17.6.1z1
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: 17.7.1b
Affected: 17.7.2
Affected: 17.10.1
Affected: 17.10.1a
Affected: 17.10.1b
Affected: 17.8.1
Affected: 17.8.1a
Affected: 17.9.1
Affected: 17.9.1w
Affected: 17.9.2
Affected: 17.9.1a
Affected: 17.9.1x
Affected: 17.9.1y
Affected: 17.9.3
Affected: 17.9.2a
Affected: 17.9.1x1
Affected: 17.9.3a
Affected: 17.9.4
Affected: 17.9.1y1
Affected: 17.9.5
Affected: 17.9.4a
Affected: 17.9.5a
Affected: 17.9.5b
Affected: 17.9.6
Affected: 17.9.6a
Affected: 17.9.7
Affected: 17.9.5e
Affected: 17.9.5f
Affected: 17.9.7a
Affected: 17.9.7b
Affected: 17.11.1
Affected: 17.11.1a
Affected: 17.12.1
Affected: 17.12.1w
Affected: 17.12.1a
Affected: 17.12.1x
Affected: 17.12.2
Affected: 17.12.3
Affected: 17.12.2a
Affected: 17.12.1y
Affected: 17.12.1z
Affected: 17.12.4
Affected: 17.12.3a
Affected: 17.12.1z1
Affected: 17.12.1z2
Affected: 17.12.4a
Affected: 17.12.5
Affected: 17.12.4b
Affected: 17.12.1z3
Affected: 17.12.5a
Affected: 17.12.1z4
Affected: 17.12.5b
Affected: 17.12.5c
Affected: 17.13.1
Affected: 17.13.1a
Affected: 17.14.1
Affected: 17.14.1a
Affected: 17.15.1
Affected: 17.15.1w
Affected: 17.15.1a
Affected: 17.15.2
Affected: 17.15.1b
Affected: 17.15.1x
Affected: 17.15.3
Affected: 17.15.2c
Affected: 17.15.2a
Affected: 17.15.1y
Affected: 17.15.2b
Affected: 17.15.3a
Affected: 17.15.3b
Affected: 17.16.1
Affected: 17.16.1a
Affected: 17.17.1
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            "confidentialityImpact": "HIGH",
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            "userInteraction": "NONE",
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    "dateReserved": "2024-10-10T19:15:13.253Z",
    "dateUpdated": "2026-02-26T17:47:59.705Z",
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                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "format": "cvssV3_1"
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-232",
                  "description": "Improper Handling of Undefined Values",
                  "lang": "en",
                  "type": "cwe"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-10-15T16:25:42.709Z",
            "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
            "shortName": "cisco"
          },
          "references": [
            {
              "name": "cisco-sa-secboot-UqFD8AvC",
              "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-secboot-UqFD8AvC"
            }
          ],
          "source": {
            "advisory": "cisco-sa-secboot-UqFD8AvC",
            "defects": [
              "CSCwo38924"
            ],
            "discovery": "INTERNAL"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "assignerShortName": "cisco",
        "cveId": "CVE-2025-20314",
        "datePublished": "2025-09-24T17:53:45.663Z",
        "dateReserved": "2024-10-10T19:15:13.253Z",
        "dateUpdated": "2025-10-15T16:25:42.709Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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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