cbcvebase.
CVE-2026-0880
published 2026-01-13

CVE-2026-0880: Sandbox escape due to integer overflow in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7…

high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
Sandbox escape due to integer overflow in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

Affected

13 ranges
VendorProductVersion rangeFixed in
debianfirefox< firefox 147.0-1 (sid)firefox 147.0-1 (sid)
debianfirefox-esr< firefox 147.0-1 (sid)firefox 147.0-1 (sid)
debianthunderbird< firefox 147.0-1 (sid)firefox 147.0-1 (sid)
mozillafirefox< 115.32.0115.32.0
mozillafirefox< 147.0147.0
mozillafirefox
mozillafirefox>= 128.0 < 140.7.0140.7.0
mozillathunderbird< 140.7.0140.7.0
mozillathunderbird< 147.0147.0
mozillathunderbird>= 0 < 1:140.7.0esr-1~deb11u11:140.7.0esr-1~deb11u1
mozillathunderbird>= 0 < 1:140.7.0esr-1~deb12u11:140.7.0esr-1~deb12u1
mozillathunderbird>= 0 < 1:140.7.0esr-1~deb13u11:140.7.0esr-1~deb13u1
mozillathunderbird>= 0 < 1:140.7.0esr-11:140.7.0esr-1

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
osv8.8HIGH