High severity · published Apr 21, 2025
CVE-2025-43972
An issue was discovered in GoBGP before 3.35.0
7.5
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GO
GoBGP · GoBGP
before 3.35.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-43972
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-43972
Patch
https://github.com/osrg/gobgp/commit/ca7383f450f7b296c5389feceef2467de5ab6e5a
Patch
https://github.com/osrg/gobgp/compare/v3.34.0...v3.35.0
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