CVE-2026-16357

CRITICAL

Mozilla Firefox - Incorrect Boundary Conditions in the Graphics Component

Title source: rule
STIX 2.1

Description

Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

References (6)

Core 6

Scores

CVSS v3 9.8
EPSS 0.0040
EPSS Percentile 33.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-119
Status published
Products (8)
mozilla/firefox < 115.38.0
mozilla/firefox < 153.0.0
Mozilla/Firefox 115.38 - 115.*
Mozilla/Firefox 140.13 - 140.*
Mozilla/Firefox 153
mozilla/thunderbird < 140.13.0
Mozilla/Thunderbird 140.13 - 140.*
Mozilla/Thunderbird 153
Published Jul 21, 2026
Tracked Since Jul 21, 2026