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CVE-2026-100792

nvd nist
Published: Sep 29, 2026Modified: Oct 19, 2026

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7.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Exploitability: 2.8 / Impact: 4.2
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

Affected (6)

Mozilla
2 products
Firefox
Thunderbird
Configuration A
6 vulnerable
Vulnerable SoftwareAffected Versions
Mozilla
Firefox
version < 140.17.0
Firefox
141.0 ≤ version < 153.4.0
Firefox
154.0.0 ≤ version < 157.0.0
Mozilla
Thunderbird
version < 140.17.0
Thunderbird
141.0 ≤ version < 153.4.0
Thunderbird
154.0 ≤ version < 157.0

Related CWEs

CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

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.