by Kastro
Paper/Archive/CVE-2026-113380

CVE-2026-113380

Signal RingRTC — In the RingRTC library before 2.72.0 for Signal, a peer that saturates a call's FSM queue can interfere with the ability of a local hangu…

EPSS 0.9%CVSS 9.3
critical.is priorityof 100
40
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 58.7.587 × 2011.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

In the RingRTC library before 2.72.0 for Signal, a peer that saturates a call's FSM queue can interfere with the ability of a local hangup to tear the call (with its audio and perhaps also video track) down.

Affected

ProductAffectedFixed inSource
RingRTC< 2.72.02.72.0CNA

Scores by source

mitre (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:N/SA:N/S:P
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refgithub.com/signalapp/ringrtc/commit/4b1b6fa53c9f30c87c8ea78e44675d4a13e1e4d3refgithub.com/signalapp/ringrtc/compare/v2.71.0...v2.72.0refgithub.com/Imahian/Notes/tree/main/docs/CVEs/CVE-2026-113380