CVE-2024-9392

Name: CVE-2024-9392
Creator: NVD / NIST
Published: 2024-10-01T16:15:10.57+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.53%

Last modified Jun 17, 2026

CVE-2024-9392 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A compromised content process could have allowed for the arbitrary loading of cross-origin pages. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

Description

A compromised content process could have allowed for the arbitrary loading of cross-origin pages. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.53%

41.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-346

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 115.6.0
Mozilla	Firefox	< 131.0
Mozilla	Thunderbird	< 128.3.0
Mozilla	Thunderbird	>= 129.0, < 131.0

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1899154Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1905843Issue Tracking
https://www.mozilla.org/security/advisories/mfsa2024-46/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-47/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-48/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-49/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-50/Vendor Advisory
https://lists.debian.org/debian-lts-announce/2024/10/msg00004.html
https://lists.debian.org/debian-lts-announce/2024/10/msg00006.html

Timeline

Published: Oct 1, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-9392?

How severe is CVE-2024-9392?

CVE-2024-9392 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.

How do I fix CVE-2024-9392?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-9392?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST