CVE-2025-43972

Description

An issue was discovered in GoBGP before 3.35.0. An attacker can cause a crash in the pkg/packet/bgp/bgp.go flowspec parser by sending fewer than 20 bytes in a certain context.

Category

6.8
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.07%
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/ca7383f450f7b296c5389feceef2467de5ab6e5a patch

Frequently Asked Questions

What is the severity of CVE-2025-43972?
CVE-2025-43972 has been scored as a medium severity vulnerability.
How to fix CVE-2025-43972?
To fix CVE-2025-43972, 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-2025-43972 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-43972 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-2025-43972?
CVE-2025-43972 affects GoBGP GoBGP.
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