cvedb.io
CVE-2025-20177
MEDIUM · CVSS 6.7
EPSS exploitation probability: 0%
Published 2025-03-12T16:15:22.347 · Last modified 2026-06-17T08:40:59.380

Summary

A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker to bypass Cisco IOS XR image signature verification and load unverified software on an affected device. To exploit this vulnerability, the attacker must have root-system privileges on the affected device. This vulnerability is due to incomplete validation of files in the boot verification process. An attacker could exploit this vulnerability by manipulating the system configuration options to bypass some of the integrity checks that are performed during the boot process. A successful exploit could allow the attacker to control the boot configuration, which could enable them to bypass the requirement to run Cisco-signed images or alter the security properties of the running system.

Affected products

cisco — ios_xr

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.