CVE-2026-122126
reSIProcate reTurn client through 1.14.0 Heap Buffer Overflow via TurnTcpSocket
reSIProcate reTurn client through 1.14.0 contains a heap buffer overflow in TurnTcpSocket::handleReadHeader() that allows malicious TURN servers to overwrite memory via oversized frame lengths. Attackers can send STUN or ChannelData frames declaring up to 65535 bytes, writing roughly 57 KB past the fixed 8192-byte mReadBuffer and crashing the client.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| resiprocate resiprocate |
≥ 0; ≤ 1.14.0 (affected, custom)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 8.2 high |
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 5.9 medium |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | CNA: VulnCheck |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/resiprocate/resiprocate/pull/496CNA: VulnCheck · issue-tracking, patch
- https://github.com/resiprocate/resiprocate/commit/5bb559fd96298073cab369fdfa610f981fb01e95CNA: VulnCheck · patch
- https://github.com/resiprocate/resiprocateCNA: VulnCheck · product
- https://github.com/resiprocate/resiprocate/blob/resiprocate-1.14.0/reTurn/client/TurnTcpSocket.cxx#L124-L147CNA: VulnCheck · technical-description
- https://www.vulncheck.com/advisories/resiprocate-return-client-through-1.14.0-heap-buffer-overflow-via-turntcpsocketCNA: VulnCheck · third-party-advisory
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