PT-2026-136312

CVE-2026-121625

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Published

2026-11-03

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Updated

2026-11-03

Description by

CVSS 3.1
3.7
Low
MetricsAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
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.
Exploitability
Fix
Impacts
Researchers
Vendors
Affected products
Weakness enumeration
CWE-125: Out-of-bounds Read
Related identifiers
CVE-2026-121625
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