Incorrect Calculation of Buffer Size Affecting firefox-debugsource package, versions <0:140.12.0-1.el10_0


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.16% (6th percentile)

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  • Snyk IDSNYK-RHEL10-FIREFOXDEBUGSOURCE-17882405
  • published8 Jul 2026
  • disclosed16 Jun 2026

Introduced: 16 Jun 2026

CVE-2026-12330  (opens in a new tab)
CWE-131  (opens in a new tab)

How to fix?

Upgrade RHEL:10 firefox-debugsource to version 0:140.12.0-1.el10_0 or higher.
This issue was patched in RHSA-2026:36100.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-debugsource package and not the firefox-debugsource package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

Incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 140.12, Firefox ESR 115.37, and Thunderbird 140.12.

CVSS Base Scores

version 3.1