CVE-2024-8926
CVSS v3
8.8
HIGH
EPSS Score
3.7 %
exploit probability, as of 2026-10-07
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In PHP versions 8.1.* before 8.1.30, 8.2.* before 8.2.24, 8.3.* before 8.3.12, when using a certain non-standard configurations of Windows codepages, the fixes for CVE-2024-4577 https://github.com/advisories/GHSA-vxpp-6299-mxw3 may still be bypassed and the same command injection related to Windows "Best Fit" codepage behavior can be achieved. This may allow a malicious user to pass options to PHP binary being run, and thus reveal the source code of scripts, run arbitrary PHP code on the server, etc.
Technical details
- Published
- 2024-10-08
Frequently asked questions
What is CVE-2024-8926?
In PHP versions 8.1.* before 8.1.30, 8.2.* before 8.2.24, 8.3.* before 8.3.12, when using a certain non-standard configurations of Windows codepages, the fixes for CVE-2024-4577 https://github.com/advisories/GHSA-vxpp-6299-mxw3 may still be bypassed and the same command injection related to Windows "Best Fit" codepage behavior can be achieved. This may allow a malicious user to pass options to PHP binary being run, and thus reveal the source code of scripts, run arbitrary PHP code on the server, etc.
Is CVE-2024-8926 actively exploited?
Active exploitation of CVE-2024-8926 has not been confirmed. Its EPSS score was 3.7% on 2026-10-07, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2024-8926?
CVE-2024-8926 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2024-8926 affecting your environment?
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