cbcvebase.
CVE-2026-4706
published 2026-03-24

CVE-2026-4706: Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9…

high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Affected

11 ranges
VendorProductVersion rangeFixed in
debianfirefox< firefox 149.0-1 (sid)firefox 149.0-1 (sid)
debianfirefox-esr< firefox 149.0-1 (sid)firefox 149.0-1 (sid)
debianthunderbird< firefox 149.0-1 (sid)firefox 149.0-1 (sid)
mozillafirefox< 115.34.0115.34.0
mozillafirefox< 149.0149.0
mozillafirefox
mozillafirefox>= 128.0 < 140.9.0140.9.0
mozillathunderbird>= 0 < 1:140.9.0esr-1~deb11u11:140.9.0esr-1~deb11u1
mozillathunderbird>= 0 < 1:140.9.0esr-1~deb12u11:140.9.0esr-1~deb12u1
mozillathunderbird>= 0 < 1:140.9.0esr-1~deb13u11:140.9.0esr-1~deb13u1
mozillathunderbird>= 0 < 1:140.9.0esr-11:140.9.0esr-1

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH