Out-of-bounds Write Affecting firefox-debugsource package, versions <0:140.13.0-1.amzn2023.0.1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.52% (42nd percentile)

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  • Snyk IDSNYK-AMZN2023-FIREFOXDEBUGSOURCE-18911833
  • published18 Aug 2026
  • disclosed21 Jul 2026

Introduced: 21 Jul 2026

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

How to fix?

Upgrade Amazon-Linux:2023 firefox-debugsource to version 0:140.13.0-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-2069.

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 Amazon-Linux. See How to fix? for Amazon-Linux:2023 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