MEDIUM 6.3 NVD
CVE-2026-121626
GNU Gatekeeper (gnugk) before 5.16 contains an out-of-bounds read vulnerability in H46024Socket::ReceivedProbePacket() that allows remote attackers to cause a h
GNU Gatekeeper (gnugk) before 5.16 contains an out-of-bounds read vulnerability in H46024Socket::ReceivedProbePacket() that allows remote attackers to cause a heap over-read by sending short probe packets. Attackers can send a short application-defined RTCP packet to the media port during H.460.24 probing to read past the heap allocation and possibly crash the gatekeeper.
References
- https://github.com/willamowius/gnugk
- https://github.com/willamowius/gnugk/blob/v5_15/GkClient.cxx#L963-L990
- https://github.com/willamowius/gnugk/commit/160aa27344ecc9a443cccaa63e8d7fa95a766610
- https://github.com/willamowius/gnugk/releases/tag/v5_16
- https://www.vulncheck.com/advisories/gnu-gatekeeper-before-5.16-out-of-bounds-read-in-h-46
This medium severity vulnerability with a CVSS score of 6.3 was published on 2026-11-03 via NVD.
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