VDB

DEBIAN-CVE-2026-0884

DEBIAN-CVE-2026-0884 PUBLISHED CVSS 9.800000190734863 CRITICAL

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

Risk Scores

CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
Debian:12thunderbird0, 102.11.0-1, 102.12.0-1
Debian:13firefox-esr0, 128.13.0esr-1, 128.14.0esr-1
Debian:12firefox-esr0, 102.15.1, 102.15.0
Debian:13thunderbird1:140.7.0esr-1~deb11u1, 1:140.7.0esr-1~deb12u1, 0
Debian:14thunderbird140.2.0, 140.3.0, 140.3.0
Debian:11thunderbird*, *, *
Debian:14firefox-esr140.4.0esr-1, 140.4.0esr-1~deb11u1, 140.4.0esr-1~deb12u1
Debian:11firefox-esr91.5.0esr-1~deb9u1, 91.5.1esr-1, 91.6.0esr-1~deb10u1

Timeline

  • Jan 13, 2026 CVE Published
  • Apr 28, 2026 CVE Updated
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