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CVE-2026-4717 Details

Description

Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Metrics

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://bugzilla.mozilla.org/show_bug.cgi?id=2021695 [email protected]Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-20/ [email protected]Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-22/ [email protected]Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-23/ [email protected]
https://www.mozilla.org/security/advisories/mfsa2026-24/ [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
NVD-CWE-noinfoInsufficient Information to Classify Weakness[email protected]

Affected Products

ProductVersions
mozilla firefox
< 140.9.0
< 149.0

CPE

  • cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*

Remediation

  • No remediation found in references.

Change History

7 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-4717
NVD Published Date:
Mar 24, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2026-4717 Details - Not Deferred