Improper Privilege Management Affecting Firefox-ESR package, versions [,115.35)[116.0,140.10)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.48% (38th percentile)

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  • Snyk IDSNYK-UNMANAGED-FIREFOXESR-16298017
  • published26 Apr 2026
  • disclosed21 Apr 2026
  • creditchoeseyeong

Introduced: 21 Apr 2026

CVE-2026-6750  (opens in a new tab)
CWE-269  (opens in a new tab)

How to fix?

Upgrade Firefox-ESR to version 115.35, 140.10 or higher.

Overview

Affected versions of this package are vulnerable to Improper Privilege Management in the WebRender process. An attacker can gain elevated privileges by exploiting improper isolation between processes.

CVSS Base Scores

version 4.0
version 3.1