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CVE-2026-12291

—
CVSS 3.1
8.8 high
EPSS
<1%p32
Published
()
Modified
Description

Use-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

Vendors
mozilla
Products
firefox, thunderbird
Weakness
CWE-416, CWE-825
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD CVE.org GitHub PoCs EPSS (0.4%)

In the news

No ingested article mentions this CVE yet.