Out-of-Bounds Affecting firefox package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.33% (70th percentile)

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  • Snyk IDSNYK-RHEL10-FIREFOX-22253649
  • published6 Nov 2026
  • disclosed8 Apr 2020

Introduced: 8 Apr 2020

CVE-2020-6822  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 firefox.

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.

On 32-bit builds, an out of bounds write could have occurred when processing an image larger than 4 GB in <code>GMPDecodeData</code>. It is possible that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.

CVSS Base Scores

version 3.1