How severe is CVE-2024-4776?

CVE-2024-4776 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability high.

Is CVE-2024-4776 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-4776?

CVE-2024-4776 affects Mozilla Firefox. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-4776?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-4776 have an EU (EUVD) identifier?

Yes. CVE-2024-4776 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-44369.

When was CVE-2024-4776 published?

CVE-2024-4776 was published on 2024-05-14 and last updated on 2026-06-17.

CVE-2024-4776

CVE-2024-4776 is a high-severity vulnerability in Mozilla Firefox with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-44369
Weakness: CWE-79
Affected product: Mozilla Firefox
Published: 2024-05-14
Last modified: 2026-06-17

Description

A file dialog shown while in full-screen mode could have resulted in the window remaining disabled. This vulnerability affects Firefox < 126.

Frequently asked questions

What is CVE-2024-4776?: A file dialog shown while in full-screen mode could have resulted in the window remaining disabled. This vulnerability affects Firefox < 126.
How severe is CVE-2024-4776?: CVE-2024-4776 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability high.
Is CVE-2024-4776 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-4776?: CVE-2024-4776 affects Mozilla Firefox. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-4776?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-4776 have an EU (EUVD) identifier?: Yes. CVE-2024-4776 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-44369.
When was CVE-2024-4776 published?: CVE-2024-4776 was published on 2024-05-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*

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