HarborGuard / CVE
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HIGHCVE-2026-6761Published Modified CNA mozilla

CVE-2026-6761: Privilege escalation in the Networking component

Privilege escalation in the Networking component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Metrics

CVSS v3.1
8.8
Severity
HIGH
Fixed in
140.10
Affected Products
2

Fix available

140.10150
Affected packages
  • Mozilla / Firefox
    Fixed in 140.10, 150
  • Mozilla / Thunderbird
    Fixed in 140.10, 150
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
CVE-2026-6761: Privilege escalation in the Networking component | HarborGuard CVE