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CVE-2026-92066

Published: Sep 15, 2026Updated: Sep 16, 2026 Sources: CVE List NVD
N/ACVSS
NVD MITRE
EPSS Score
0.1%
Top 96.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
OpenVAS

Description

Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

No summary for this CVE yet.

Affected Products

Mozilla
oss-project·USaka mozilla corp.
FirefoxOn-premDesktop App
Consumer Software / browser
ThunderbirdOn-premDesktop App
Communications / email-server-client

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
Is your org exposed to CVE-2026-92066?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2058093
bugzilla.mozilla.org
https://www.mozilla.org/security/advisories/mfsa2026-90/
mozilla.org
https://www.mozilla.org/security/advisories/mfsa2026-94/
mozilla.org

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