Security Advisory

CVE-2025-5270

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-05-27 12:29:28

Last updated 2026-04-13 14:30:47

Assigner mozilla

State PUBLISHED

Description

In certain cases, SNI could have been sent unencrypted even when encrypted DNS was enabled. This vulnerability was fixed in Firefox 139 and Thunderbird 139.

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