CVE-2025-26695

5.3 MEDIUM

Published: March 10, 2025 Modified: April 13, 2026

Description

When requesting an OpenPGP key from a WKD server, an incorrect padding size was used and a network observer could have learned the length of the requested email address. This vulnerability was fixed in Thunderbird 136 and Thunderbird 128.8.

AI Explanation

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://bugzilla.mozilla.org/show_bug.cgi?id=1883039

Source: security@mozilla.org

Issue Tracking

https://www.mozilla.org/security/advisories/mfsa2025-17/

Source: security@mozilla.org

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2025-18/

Source: security@mozilla.org

Vendor Advisory

3 reference(s) from NVD

Quick Stats

CVSS v3 Score

5.3 / 10.0

EPSS (Exploit Probability)

0.1%

16th percentile

Exploitation Status

Not in CISA KEV

Affected Vendors

mozilla