CVE-2026-121626

LowCVSS 3.7/10Last modified Nov 7, 2026

Description

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.

Metrics

CVSS 3.1 3.7/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-125

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
willamowius	gnugk	< 5.16

References

Timeline

Published: Nov 3, 2026
Last modified: Nov 7, 2026
NVD status: Received

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