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Description

When Multi-Account Containers was enabled, DNS requests could have bypassed a SOCKS proxy when the domain name was invalid or the SOCKS proxy was not responding. This vulnerability was fixed in Firefox 140 and Thunderbird 140.

PUBLISHED Reserved 2025-06-20 | Published 2025-06-24 | Updated 2026-04-13 | Assigner mozilla

Product status

140 (rpm)
unaffected

140 (rpm)
unaffected

Credits

Albert

References

bugzilla.mozilla.org/show_bug.cgi?id=1943804

www.mozilla.org/security/advisories/mfsa2025-51/

www.mozilla.org/security/advisories/mfsa2025-54/

cve.org (CVE-2025-6432)

nvd.nist.gov (CVE-2025-6432)

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