CVE-2024-9394
7.5
HIGH
CVSS 3.1
EPSS 0.16%
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.
How to fix CVE-2024-9394
To remediate CVE-2024-9394, upgrade the affected package to a fixed version below.
- —upgrade to 128.3.0esr-1~deb11u2 or later
- —upgrade to 1:115.16.0esr-1~deb11u1 or later
Is CVE-2024-9394 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 128.3.0esr-1~deb11u2
- from 0, < 1:115.16.0esr-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |