CVE-2025-20181

Cisco IOS

MEDIUM 6.8

At a glance

Source
NVD
EPSS
EPSS 0.20 % · percentile 10 ()
State
PUBLISHED
Published
Updated
Assigner
cisco
NVD status
Analyzed

Description

A vulnerability in Cisco IOS Software for Cisco Catalyst 2960X, 2960XR, 2960CX, and 3560CX Series Switches could allow an authenticated, local attacker with privilege level 15 or an unauthenticated attacker with physical access to the device to execute persistent code at boot time and break the chain of trust. This vulnerability is due to missing signature verification for specific files that may be loaded during the device boot process. 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 arbitrary code at boot time. Because this allows the attacker to bypass a major security feature of the device, Cisco has raised the Security Impact Rating (SIR) of this advisory from Medium to High.

Weaknesses (CWE)

  • CWE-347 — Improper Verification of Cryptographic Signature

References

Scores

VersionScoreVectorScored by
CVSS 3.0MEDIUM 6.8CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hcisco
CVSS 3.0MEDIUM 6.8CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · psirt@cisco.com (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Cisco · IOSaffected 15.0(1)XO1 ; affected 15.0(1)XO ; affected 15.0(2)XO ; affected 15.0(1)EY ; affected 15.0(1)EY1 ; affected 15.0(1)EY2

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD