CVEvulnerability

CVE-2026-2771

9.8 CRITICAL Published 2026-02-24 Modified 2026-09-21 Official page ↗
Status
Modified
Published
2026-02-24
Last modified
2026-09-21
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-125

Description

Undefined behavior in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Affected configurations

• mozilla firefox (< 115.33.0) • mozilla firefox (< 148.0) • mozilla firefox (>= 128.0 < 140.8.0) • mozilla thunderbird (< 140.8.0) • mozilla thunderbird (< 148.0)

Related

Weakness · CWE (1)

  • CWE-125 Out-of-bounds Read weakness

References