MEDIUM 6.3 NVD
CVE-2026-121625
GNU Gatekeeper (gnugk) before 5.16 contains an out-of-bounds read vulnerability in ParseRTCP() in ProxyChannel.cxx that allows remote RTP peers to read heap mem
GNU Gatekeeper (gnugk) before 5.16 contains an out-of-bounds read vulnerability in ParseRTCP() in ProxyChannel.cxx that allows remote RTP peers to read heap memory past received packets. Attackers can send RTCP SDES items lacking a NUL byte to the media proxy port during proxied H.323 calls with EnableRTCPStats enabled, crashing the gatekeeper.
References
- https://github.com/willamowius/gnugk
- https://github.com/willamowius/gnugk/blob/v5_15/ProxyChannel.cxx#L14867-L14895
- https://github.com/willamowius/gnugk/commit/e8939d03b0b2ef46e356f3144a6ee14f2920b777
- https://github.com/willamowius/gnugk/releases/tag/v5_16
- https://www.vulncheck.com/advisories/gnu-gatekeeper-before-5.16-out-of-bounds-read-via-rtc
This medium severity vulnerability with a CVSS score of 6.3 was published on 2026-11-03 via NVD.
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