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CVE-2026-16367

CRITICAL
10.0
CVSS 3.1
Description
Sandbox escape due to invalid pointer in the Disability Access APIs component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

Metadata

CVE ID
CVE-2026-16367
State
PUBLISHED
Assigner
mozilla
Reserved
2026-07-20 21:56 UTC
Published
2026-07-21 12:37 UTC
Last updated
2026-07-22 19:18 UTC
Primary CWE
CWE-416
CWE-416 Use After Free
Vendor / Product
Mozilla / Firefox
Sources
cve.org  ·  NVD

Severity & Metrics

10.0 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC — CISA Coordinator
Exploitation
none
Automatable
yes
Tech. Impact
total
Affected products (2)
VendorProductPlatformVersions
Mozilla Firefox — 153 ≤ *
Mozilla Thunderbird — 153 ≤ *
Weakness (CWE)
CWESourceDescription
CWE-119 adp CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-416 adp CWE-416 Use After Free
CWE-787 adp CWE-787 Out-of-bounds Write
CVSS scores (1)
ScoreSeverityVersionSourceVector
10.0 CRITICAL 3.1 adp CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References (3)
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