What’s Vulnerable › Vulnerabilities

CVE-2024-4773

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-14 · updated 2026-06-17
• Weakness: CWE-601

Description

When a network error occurred during page load, the prior content could have remained in view with a blank URL bar. This could have been used to obfuscate a spoofed web site. This vulnerability affects Firefox < 126.

Affected products

• Mozilla Firefox: before 126.0 — fixed in 126.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 126.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1875248
• https://www.mozilla.org/security/advisories/mfsa2024-21/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1875248
• https://www.mozilla.org/security/advisories/mfsa2024-21/

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