CVE-2026-6765 Details
Description
Information disclosure in the Form Autofill component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
A vulnerability allowing information disclosure has been identified in the Form Autofill component of Mozilla Firefox. This issue affects Firefox versions prior to 150 and Firefox ESR versions prior to 140.10. The vulnerability arises from uninitialized memory, which could potentially be exploited to access sensitive information.
Users can upgrade to Firefox 150 or Firefox ESR 140.10 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 27, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=2022419 | [email protected] | Permissions Required |
| https://www.mozilla.org/security/advisories/mfsa2026-30/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2026-32/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2026-33/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2026-34/ | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-359 | Exposure of Private Personal Information to an Unauthorized Actor | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| mozilla firefox | < 140.10.0 < 150.0 |
CPE
Remediation
| |
| mozilla thunderbird | < 140.10.0 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 22, 2026 | Initial Analysis | [email protected] |
| Apr 22, 2026 | CVE Modified | [email protected] |
| Apr 21, 2026 | CVE Modified | CISA-ADP |
| Apr 21, 2026 | New CVE Received | [email protected] |