CVE-2025-20143

Katalog CVE

CVSS 6.7 · Medium EPSS 0,11%

Kerentanan Improper Verification of Cryptographic Signature pada cisco ios xr. Skor CVSS 3.1 6.7 (Medium) menurut cisco.com.

Deskripsi (NVD)

A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker with high privileges to bypass the Secure Boot functionality 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 insufficient verification of modules in the software load process. An attacker could exploit this vulnerability by manipulating the loaded binaries to bypass some of the integrity checks that are performed during the booting 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. Note: This vulnerability affects Cisco IOS XR Software, not the Secure Boot feature. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Rincian

Terbit di NVD

12 Maret 2025

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

6.7 (Medium), sumber cisco.com
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-347: Improper Verification of Cryptographic Signature

EPSS (30 hari)

0,11% peluang dieksploitasi; lebih tinggi dari 1,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-lkm-zNErZjbZ advisory vendor
• https://blog.apnic.net/2024/09/02/crafting-endless-as-paths-in-bgp/ deskripsi teknis