CVE-2026-92028CWE-416

CVE-2026-92028

High · published September 15, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
23.7
In the wild
Unconfirmed
What it is

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00319 · 23.7th percentile
Weakness
CWE-416 · Use After Free
Published
2026-09-15T17:16Z
Affected products (7)
ProductVersionsFixed in
mozilla/firefox< 115.41.0115.41.0
mozilla/firefox≥ 116.0, < 140.16.0140.16.0
mozilla/firefox≥ 141.0, < 153.3.0153.3.0
mozilla/firefox≥ 154.0.0, < 156.0.0156.0.0
mozilla/thunderbird< 140.16.0140.16.0
mozilla/thunderbird≥ 141.0, < 153.3.0153.3.0
mozilla/thunderbird≥ 154.0, < 156.0156.0
References (8)
https://bugzilla.mozilla.org/show_bug.cgi?id=2068440 · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-90/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-91/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-92/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-93/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-94/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-95/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-96/ · [email protected]
EPSS history
Timeline
  • 17 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 15 SEP 12:33Z
    Use-after-free in the DOM: Core & HTML component
    cvelistv5