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VULNERABILITIES

CVE-2026-121625 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:3.7 LOWVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/willamowius/gnugk [email protected]
https://github.com/willamowius/gnugk/blob/v5_15/ProxyChannel.cxx#L14867-L14895 [email protected]
https://github.com/willamowius/gnugk/commit/e8939d03b0b2ef46e356f3144a6ee14f2920b777 [email protected]
https://github.com/willamowius/gnugk/releases/tag/v5_16 [email protected]
https://www.vulncheck.com/advisories/gnu-gatekeeper-before-5.16-out-of-bounds-read-via-rtcp-sdes-parsing [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-125Out-of-bounds Read[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-121625
NVD Published Date:
Nov 3, 2026
NVD Last Modified:
Nov 3, 2026
Source:
[email protected]