Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-6777 Details

Other issue in the Networking: DNS component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://bugzilla.mozilla.org/show_bug.cgi?id=2022726	[email protected]	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-30/	[email protected]	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-33/	[email protected]	Vendor Advisory

CWE-ID	CWE Name	Source
CWE-20	Improper Input Validation	CISA-ADP
CWE-352	Cross-Site Request Forgery (CSRF)	CISA-ADP
CWE-400	Uncontrolled Resource Consumption	CISA-ADP

Product	Versions
mozilla firefox	< 150.0
CPE cpe:2.3:a:mozilla:firefox:::::-:::* Remediation No remediation found in references.
mozilla thunderbird	< 150.0
CPE cpe:2.3:a:mozilla:thunderbird:::::::: Remediation No remediation found in references.

6 change records found show changes

QUICK INFO