HIGH

CVE-2024-8926

CVSS v3

8.8

HIGH

EPSS Score

3.7 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

phpBitnamiall versions · fixed in 8.1.30and 2 other packages
php5Ubuntu:Pro:14.04:LTSall versions · no fixed version listed
php7.0Ubuntu:Pro:16.04:LTSall versions · no fixed version listed
php7.2Ubuntu:Pro:18.04:LTSall versions · no fixed version listed
php7.4Ubuntu:20.04:LTSall versions · no fixed version listed
php8.1Ubuntu:22.04:LTSall versions · no fixed version listed
php8.3Ubuntu:24.04:LTSall versions · no fixed version listed

Vendor advisories

CVE-2024-8926 Red Hat Product Security
php: PHP CGI Parameter Injection Vulnerability (CVE-2024-4577 bypass)

Full record on NVD

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?

Is CVE-2024-8926 actively exploited?

Active exploitation of CVE-2024-8926 has not been confirmed. Its EPSS score was 3.7% on 2026-10-19, 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).

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