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CVE-2025-0239

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CVSS 3.1
4.0 medium
EPSS
<1%p13
Published
()
Modified
Description

When using Alt-Svc, ALPN did not properly validate certificates when the original server is redirecting to an insecure site. This vulnerability was fixed in Firefox 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.

Vendors
mozilla
Products
firefox, thunderbird
Weakness
CWE-295
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD CVE.org GitHub PoCs EPSS (0.2%)

In the news

No ingested article mentions this CVE yet.