What’s Vulnerable › Vulnerabilities

CVE-2025-43973

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-21 · updated 2026-06-17
• Weakness: CWE-193

Description

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.

Affected products

• osrg GoBGP: before 3.35.0 — fixed in 3.35.0

How to fix

Upgrade to a fixed version: osrg GoBGP 3.35.0. Check the vendor advisory for mitigations.

References

• https://github.com/osrg/gobgp/commit/5693c58a4815cc6327b8d3b6980f0e5aced28abe
• https://github.com/osrg/gobgp/compare/v3.34.0...v3.35.0

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