CVE-2026-117863

Information disclosure due to uninitialized memory in the Audio/Video component

Published Oct 27, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Information disclosure due to uninitialized memory in the Audio/Video component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4866-1 firefox-esr security update
Debian DLA Debian DLA DLA-4877-1 thunderbird security update
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Weaknesses CWE-908
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Weaknesses CWE-200
CWE-788
Vendors & Products Mozilla
Mozilla firefox
Type Values Removed Values Added
Description Information disclosure due to uninitialized memory in the Audio/Video component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, and Firefox ESR 153.6. Information disclosure due to uninitialized memory in the Audio/Video component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
References
Type Values Removed Values Added
Weaknesses CWE-200
CWE-788
Type Values Removed Values Added
Description Information disclosure due to uninitialized memory in the Audio/Video component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, and Firefox ESR 153.6.
Title Information disclosure due to uninitialized memory in the Audio/Video component
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Nov 4, 2026, 5:42 PM
Reserved
Oct 27, 2026, 2:05 PM
Status
Deferred
Published
Oct 27, 2026, 2:16 PM
Modified
Nov 4, 2026, 6:17 PM