CVE-2026-100775

Published: Sep 29, 2026Modified: Oct 6, 2026

9.6

Vector

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

Exploitability: 2.8 / Impact: 6.0

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

Sandbox escape in the Graphics component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

Affected (7)

Products: Mozilla: Firefox, Thunderbird

Mozilla

2 products

Firefox

Thunderbird

Configuration A

7 vulnerable

Vulnerable Software	Affected Versions
Mozilla Firefox	115.0.1 ≤ version < 115.42.0
Mozilla Firefox	140.0.0 ≤ version < 140.17.0
Mozilla Firefox	153.0.0 ≤ version < 153.4.0
Mozilla Firefox	154.0.0 ≤ version < 157.0.0
Mozilla Thunderbird	140.0 ≤ version < 140.17.0
Mozilla Thunderbird	153.0 ≤ version < 153.4.0
Mozilla Thunderbird	154.0 ≤ version < 157.0