Buffer overflow in Cisco IOS XR - CVE-2025-20115

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Main Vulnerability Database Vulnerabilities #VU105698

Buffer overflow in Cisco IOS XR - CVE-2025-20115

Published: March 13, 2025


Vulnerability identifier: #VU105698
CSH Severity: High
CVSSv4.0: 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/E:U/U:Amber
CVE-ID: CVE-2025-20115
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco IOS XR
Software vendor:
Cisco Systems, Inc

Description

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.


Remediation

Install updates from vendor's website.

External links