Read the docs
Red Hat Security Advisory

RHSA-2025:8608

thunderbird security update

Released 2025-06-05 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 9 records

Priority MEDIUM 55

An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.09515 Published 2025-05-17 Partial fix · 115.23.1, 128.10.1 +3 CWE-125
Priority MEDIUM 52

An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes.

CVSS 3.1HIGH 8.8 Network No auth User interaction EPSS 0.09115 Published 2025-05-17 Partial fix · 115.23.1, 128.10.1 +3 CWE-125
TI-2025-04746 CVE-2025-5283 · GHSA-j84v-78j2-55gh

Use after free in Google Chrome

Priority LOW 25

Use after free in libvpx in Google Chrome prior to 137.0.7151.55 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CVSS 3.1MEDIUM 5.4 Network No auth User interaction EPSS 0.00642 Published 2025-05-27 Partial fix · 137.0.7151.55 CWE-416
Priority LOW 24

Due to insufficient escaping of the newline character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system.

CVSS 3.1MEDIUM 4.8 Local Low privileges User interaction EPSS 0.00303 Published 2025-05-27 Partial fix · 115.24, 128.11 +1 CWE-77
Priority LOW 20

Script elements loading cross-origin resources generated load and error events which leaked information enabling XS-Leaks attacks.

CVSS 3.1MEDIUM 4.3 Network No auth User interaction EPSS 0.00341 Published 2025-05-27 Partial fix · 128.11, 139 CWE-200
TI-2025-04727 CVE-2025-5263 · GHSA-pjg4-cx24-6mjc

Origin validation error in Mozilla Firefox

Priority LOW 20

Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin leak attacks.

CVSS 3.1MEDIUM 4.3 Network No auth User interaction EPSS 0.00265 Published 2025-05-27 Partial fix · 115.24, 128.11 +1 CWE-346