Buffer overflow in Cisco IOS XR - CVE-2025-20115
Published: March 13, 2025
Vulnerability identifier: #VU105698
CSH Severity: High
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-20115
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in confederation implementation for the Border Gateway Protocol (BGP). A remote attacker can send a specially crafted BGP update message, trigger memory corruption and cause a denial of service condition on the target system.
Affected software
Cisco IOS XR
How to mitigate CVE-2025-20115
Install updates from vendor's website.
Cisco IOS XR - addressed in versions 24.3.1, 24.3.2, 24.3.20, 24.4.1, 24.4.10