CVE-2025-43970

Description

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).

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.05%
Affected: GoBGP GoBGP
Published at:
Updated at:

References

Link Tags
https://github.com/osrg/gobgp/compare/v3.34.0...v3.35.0 patch release notes
https://github.com/osrg/gobgp/commit/5153bafbe8dbe1a2f02a70bbf0365e98b80e47b0 patch

Frequently Asked Questions

What is the severity of CVE-2025-43970?
CVE-2025-43970 has been scored as a medium severity vulnerability.
How to fix CVE-2025-43970?
To fix CVE-2025-43970, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-43970 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-43970 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-43970?
CVE-2025-43970 affects GoBGP GoBGP.
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