CVE-2025-55029

HIGH 7.5

Malicious scripts could spam popups for denial of service attacks

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

Malicious scripts could bypass the popup blocker to spam new tabs, potentially resulting in denial of service attacks. This vulnerability was fixed in Firefox for iOS 142.

Vendor	mozilla
Product	firefox for ios
Ecosystems	Browser JavaScript
Industries	Technology
Published	Aug 19, 2025
Last Updated	Apr 13, 2026

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Affected Versions

Mozilla / Firefox for iOS

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

bugzilla.mozilla.org: https://bugzilla.mozilla.org/show_bug.cgi?id=1973577 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-68/

Credits

Bharat