CVE-2025-43972 – GoBGP FlowSpec Parser Denial of Service

The following table lists the changes that have been made to the
CVE-2025-43972 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Apr. 21, 2025

    Action Type Old Value New Value
    Added 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.
    Added Reference https://github.com/osrg/gobgp/commit/ca7383f450f7b296c5389feceef2467de5ab6e5a
    Added Reference https://github.com/osrg/gobgp/compare/v3.34.0…v3.35.0
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