Vulnerability in Gobgp
CVE-2025-43970
An issue was discovered in GoBGP before 3.35.0. pkg/packet/mrt/mrt.go does not properly check the input length, e.g., by ensuring that there are 12 bytes or 36 bytes (depending on the address family).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.004 (37.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · 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/5153bafbe8dbe1a2f02a70bbf0365e98b80e47b0 (Patch)
Frequently asked questions
- What is CVE-2025-43970?
- CVE-2025-43970 is a medium-severity vulnerability in Gobgp, classified under Improper Validation of Specified Quantity in Input. CVSS score: 4.3/10. Published 2025-04-21.
- How severe is CVE-2025-43970?
- Medium severity. CVSS v3 base score is 4.3 out of 10.