CVE-2026-109728 Security Details

CVE ID

CVE-2026-109728

CWE

CWE-416

CVE Description

Use-after-free in the DOM: Animation component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

Published

Oct 15, 2026

CVSS Score & Severity

5.4Medium

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS Score

0.228%

Malware

malware

KEV Status

Not in KEV Catalog: No known exploits

Affected Ecosystems

affected

Source

National Vulnerability Database

References

Bugzilla #2074625PROJECT

mozilla.orgPROJECT