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CVE-2024-9394

7.5 · HIGH

An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://devtools` origin.

Published Oct 1, 2024CWE-79EPSS 0.52%

Overview

CVE-2024-9394 is a high-severity vulnerability. It was published on October 1, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://devtools` origin. This could allow them to access cross-origin JSON content. This access is limited to "same site" documents by the Site Isolation feature on desktop clients, but full cross-origin access is possible on Android versions. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refbugzilla.mozilla.org/show_bug.cgi?id=1918874Refwww.mozilla.org/security/advisories/mfsa2024-46/Refwww.mozilla.org/security/advisories/mfsa2024-47/Refwww.mozilla.org/security/advisories/mfsa2024-48/Refwww.mozilla.org/security/advisories/mfsa2024-49/Refwww.mozilla.org/security/advisories/mfsa2024-50/Reflists.debian.org/debian-lts-announce/2024/10/msg00004.htmlReflists.debian.org/debian-lts-announce/2024/10/msg00006.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-9394?

CVE-2024-9394 is a high-severity vulnerability. It was published on October 1, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-9394?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-9394?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-9394?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-9394 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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