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CVE-2026-92074 Details
Description
Mitigation bypass in the Popup Blocker component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
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 Sep 22, 2026Exploitation: NoneAutomatable: NoTechnical Impact: Total
References to Advisories, Solutions, and Tools
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=2063539 | [email protected] | Permissions Required |
| https://www.mozilla.org/security/advisories/mfsa2026-90/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2026-93/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2026-94/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2026-96/ | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-693 | Protection Mechanism Failure | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| mozilla firefox | < 153.3.0 >= 154.0.0, < 156.0.0 |
CPE
Remediation
| |
| mozilla thunderbird | < 153.3.0 >= 154.0, < 156.0 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 5, 2026 | Initial Analysis | [email protected] |
| Sep 22, 2026 | CVE Modified | CISA-ADP |
| Sep 16, 2026 | CVE Modified | [email protected] |
| Sep 15, 2026 | CVE Modified | [email protected] |
| Sep 15, 2026 | New CVE Received | [email protected] |