CVE-2025-43973

What it is

An issue was discovered in GoBGP before 3.35.0. pkg/packet/rtr/rtr.go does not verify that the input length corresponds to a situation in which all bytes are available for an RTR message.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of service disruption.

Exploit odds

0.6% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2025-04-21 01:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 09:24 UTC Last updatedMost recent change to the record

Details

Published

2025-04-21 01:15 UTC

Last modified

2026-06-17 09:24 UTC

Exploit probability

0.6% · EPSS, next 30 days

Weakness

CWE-193

Record status

Analyzed

Affected

• Osrg Gobgp < 3.35.0

Attack profile CVSS 3.1 · 6.8

Attack vector

Network

Complexity

High

Privileges needed

None

User interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High