CVE-2025-20248 — Cisco IOS XR Software Image Verification Bypass Vulnerability
A vulnerability in the installation process of Cisco IOS XR Software could allow an authenticated, local attacker to bypass Cisco IOS XR Software image signature verification an…
Published: 2025-09-10 · CVSS: 6.0 · CVSS 3.1
A vulnerability in the installation process of Cisco IOS XR Software could allow an authenticated, local attacker to bypass Cisco IOS XR Software image signature verification and load unsigned 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 during the installation of an .iso file. An attacker could exploit this vulnerability by modifying contents of the .iso image and then installing and activating it on the device. A successful exploit could allow the attacker to load an unsigned file as part of the image activation process.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7