Out-of-bounds Write Affecting firefox package, versions <0:140.13.0-1.el10_2


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.33% (26th percentile)

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  • Snyk IDSNYK-RHEL10-FIREFOX-18381908
  • published29 Jul 2026
  • disclosed21 Jul 2026

Introduced: 21 Jul 2026

NewCVE-2026-16412  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade RHEL:10 firefox to version 0:140.13.0-1.el10_2 or higher.
This issue was patched in RHSA-2026:47101.

NVD Description

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

Memory safety bugs present in Firefox ESR 140.12 and Firefox 152. 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 was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

CVSS Base Scores

version 3.1