CVEvulnerability

CVE-2025-5270

7.5 HIGH Published 2025-05-27 Modified 2026-09-30 Official page ↗
Status
Modified
Published
2025-05-27
Last modified
2026-09-30
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-319

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.

Affected configurations

• mozilla firefox (< 139.0)

Related

Weakness · CWE (1)

  • CWE-319 Cleartext Transmission of Sensitive Information weakness

References