Vulnerability in Gobgp
CVE-2025-43973
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (47.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000
Affected products
- Gobgp — versions 0
- Osrg Gobgp
Weakness classification (CWE)
References
- github.com/osrg/gobgp/compare/v3.34.0...v3.35.0 (Patch, Release Notes)
- github.com/osrg/gobgp/commit/5693c58a4815cc6327b8d3b6980f0e5aced28abe (Patch)
Frequently asked questions
- What is CVE-2025-43973?
- CVE-2025-43973 is a medium-severity vulnerability in Gobgp, classified under Off-by-one Error. CVSS score: 6.8/10. Published 2025-04-21.
- How severe is CVE-2025-43973?
- Medium severity. CVSS v3 base score is 6.8 out of 10.