INFSA-2025:2899: Thunderbird security update

Information about definition

Identificator: INFSA-2025:2899

Type: security

Release date: 2025-03-31 07:09:43 UTC

Information about package

Mozilla Thunderbird is a standalone mail and newsgroup client.

Vulnerabilities description

  • CVE-2025-1937

    Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.

  • CVE-2025-1938

    Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.

Severity level

CVE Score CVSS 2.0 Score CVSS 3.x Score CVSS 4.0
NIST — CVE-2025-1937
 no information 8.8 no information
NIST — CVE-2025-1938
 no information 8.8 no information
Critical, important, moderate, low

Updated packages