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CVE-2026-74983

nvd nist
Published: Aug 18, 2026Modified: Aug 19, 2026

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8.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Exploitability: 2.8 / Impact: 5.2
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

Mitigation bypass in the Data Loss Prevention component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

Affected (4)

Mozilla
2 products
Firefox
Thunderbird
Configuration A
4 vulnerable
Vulnerable SoftwareAffected Versions
Mozilla
Firefox
Before 140.14.0
Firefox
From 141.0 to 153.1.0
Mozilla
Thunderbird
Before 140.14.0
Thunderbird
From 141.0 to 153.1.0

Related CWEs

CWE-693
Protection Mechanism Failure
The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

References (7)

Source: security@mozilla.org
Permissions Required
Source: security@mozilla.org
Vendor Advisory
Source: security@mozilla.org
Vendor Advisory
Source: security@mozilla.org
Vendor Advisory
Source: security@mozilla.org
Vendor Advisory
Source: security@mozilla.org
Vendor Advisory
Source: security@mozilla.org
Vendor Advisory

Timeline

No history available yet.