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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00287.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Signal RingRTC unaffected
Version Status Constraints
0 affected < 2.72.0

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/Imahian/Notes/tree/main/docs/CVEs/CVE-2026-113380 cve-icon
https://github.com/signalapp/ringrtc/commit/4b1b6fa53c9f30c87c8ea78e44675d4a13e1e4d3 cve-icon cve-icon
https://github.com/signalapp/ringrtc/compare/v2.71.0...v2.72.0 cve-icon cve-icon
History

Tue, 20 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
References

Tue, 20 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 20 Oct 2026 12:45:00 +0000

Type Values Removed Values Added
Title Denial of Service via FSM Queue Saturation in RingRTC

Tue, 20 Oct 2026 04:45:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-754
References
Metrics cvssV4_0

{'score': 9.3, '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/S:P'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-20T14:38:10.315Z

Reserved: 2026-10-20T04:25:09.736Z

Link: CVE-2026-113380

cve-icon Vulnrichment

Updated: 2026-10-20T13:47:13.891Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T05:16:54.083

Modified: 2026-10-20T20:06:37.150

Link: CVE-2026-113380

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-20T07:00:13Z

Weaknesses