VDB

DEBIAN-CVE-2026-4689

DEBIAN-CVE-2026-4689 PUBLISHED CVSS 10 CRITICAL

Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Risk Scores

CVSS 3.1
10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected Products

VendorProductVersions
Debian:14thunderbird140.9.0, 1:128.14.0esr-1, 1:128.14.0esr-1~deb11u1
Debian:11thunderbird140.6.0, *, *
Debian:12firefox-esr115.7.0, 115.7.0, 115.6.0
Debian:13thunderbird*, 1:128.13.0esr-1, 1:128.14.0esr-1~deb12u1
Debian:11firefox-esr78.14.0, 78.14.0, 78.15.0
Debian:14firefox-esr0, 128.13.0esr-1, 128.14.0esr-1
Debian:12thunderbird1:115.12.0-1~deb11u1, 1:115.11.0-1~deb12u1, 1:115.11.0-1~deb11u1
Debian:13firefox-esr128.14.0esr-1~deb11u1, 0, *

Timeline

  • Mar 24, 2026 CVE Published
  • Apr 28, 2026 CVE Updated
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