CVE-2026-113380

CVE Enrichment

CVSS: 9.3 CRITICAL
EPSS: 0.32%
EPSS Percentile: 23.82%
CISA KEV: Not listed

Description

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.

Technical Details

CVSS Version: 4.0
CNA / NVD Source: [email protected]
Published: 20-Oct-2026 12:16
Last Modified: 21-Oct-2026 03:06
EPSS Date: 2026-10-21
CWE: CWE-754

CVSS Vector


            CVSS:4.0                            AV:N /
                            AC:L /
                            AT:N /
                            PR:N /
                            UI:P /
                            VC:H /
                            VI:H /
                            VA:N /
                            SC:H /
                            SI:N /
                            SA:N /
                            E:X /
                            CR:X /
                            IR:X /
                            AR:X /
                            MAV:X /
                            MAC:X /
                            MAT:X /
                            MPR:X /
                            MUI:X /
                            MVC:X /
                            MVI:X /
                            MVA:X /
                            MSC:X /
                            MSI:X /
                            MSA:X /
                            S:P /
                            AU:X /
                            R:X /
                            V:X /
                            RE:X /
                            U:X

References

Last enrichment sync: 22-Oct-2026 05:34
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (2)

The security defect is tracked as CVE-2026-113380 (CVSS score of 9.3) and impacts RingRTC, the open source library Signal uses for voice and video calls, which is based on WebRTC. Signal Fixes Critical RingRTC Flaw That Could Keep Calls Active After Hang-Up
The vulnerability, tracked as CVE-2026-113380 (CVSS score 9.3 out of 10), affects RingRTC versions earlier than 2.72.0. RingRTC is the open-source library behind Signal’s voice and video calling functionality, providing Signal call bug could leave audio active after hang-up

Vendors (1)

Products (2)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.