What’s Vulnerable › Vulnerabilities

CVE-2019-11699

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-07-23 · updated 2026-06-17

Description

A malicious page can briefly cause the wrong name to be highlighted as the domain name in the addressbar during page navigations. This could result in user confusion of which site is currently loaded for spoofing attacks. This vulnerability affects Firefox < 67.

Affected products

• Mozilla Firefox: before 67.0 — fixed in 67.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 67.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1528939
• https://www.mozilla.org/security/advisories/mfsa2019-13/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1528939
• https://www.mozilla.org/security/advisories/mfsa2019-13/

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