Description
Information disclosure in the WebRTC component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.
Published: 2026-08-18
Score: 7.5 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 19 Aug 2026 01:15:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla thunderbird
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
Vendors & Products Mozilla thunderbird

Tue, 18 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200

Tue, 18 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-1021
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 18 Aug 2026 19:00:00 +0000

Type Values Removed Values Added
Description Information disclosure in the WebRTC component. This vulnerability was fixed in Firefox 154 and Firefox ESR 153.1. Information disclosure in the WebRTC component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.
References

Tue, 18 Aug 2026 14:15:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Weaknesses CWE-200
Vendors & Products Mozilla
Mozilla firefox

Tue, 18 Aug 2026 12:45:00 +0000

Type Values Removed Values Added
Description Information disclosure in the WebRTC component. This vulnerability was fixed in Firefox 154 and Firefox ESR 153.1.
Title Information disclosure in the WebRTC component
References

Subscriptions

Mozilla Firefox Thunderbird
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-08-18T19:03:15.749Z

Reserved: 2026-08-17T11:58:18.135Z

Link: CVE-2026-74958

cve-icon Vulnrichment

Updated: 2026-08-18T19:02:56.517Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-18T13:17:32.910

Modified: 2026-08-19T01:00:14.873

Link: CVE-2026-74958

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-18T21:30:04Z

Weaknesses
  • CWE-1021

    Improper Restriction of Rendered UI Layers or Frames