CVE-2025-3523 Affecting thunderbird package, versions <0:128.9.2-1.0.1.el9_5


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (9th percentile)

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  • Snyk IDSNYK-ORACLE9-THUNDERBIRD-9893228
  • published29 Apr 2025
  • disclosed15 Apr 2025

Introduced: 15 Apr 2025

NewCVE-2025-3523  (opens in a new tab)

How to fix?

Upgrade Oracle:9 thunderbird to version 0:128.9.2-1.0.1.el9_5 or higher.
This issue was patched in ELSA-2025-4229.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

When an email contains multiple attachments with external links via the X-Mozilla-External-Attachment-URL header, only the last link is shown when hovering over any attachment. Although the correct link is used on click, the misleading hover text could trick users into downloading content from untrusted sources. This vulnerability affects Thunderbird < 137.0.2 and Thunderbird < 128.9.2.

CVSS Base Scores

version 3.1