CVE-2025-1015 Affecting thunderbird package, versions <1:128.7.0esr-1~deb12u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.36% (69th percentile)

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  • Snyk IDSNYK-ECHOLATEST-THUNDERBIRD-18318833
  • published26 Jul 2026
  • disclosed4 Feb 2025

Introduced: 4 Feb 2025

CVE-2025-1015  (opens in a new tab)

How to fix?

Upgrade Echo:latest thunderbird to version 1:128.7.0esr-1~deb12u1 or higher.

NVD Description

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

The Thunderbird Address Book URI fields contained unsanitized links. This could be used by an attacker to create and export an address book containing a malicious payload in a field. For example, in the “Other” field of the Instant Messaging section. If another user imported the address book, clicking on the link could result in opening a web page inside Thunderbird, and that page could execute (unprivileged) JavaScript. This vulnerability was fixed in Thunderbird 128.7 and Thunderbird 135.

CVSS Base Scores

version 3.1