CVE-2024-38475
CVSS v3
9.1
CRITICAL
EPSS Score
93.8 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure. Substitutions in server context that use a backreferences or variables as the first segment of the substitution are affected. Some unsafe RewiteRules will be broken by this change and the rewrite flag "UnsafePrefixStat" can be used to opt back in once ensuring the substitution is appropriately constrained.
CISA Known Exploited Vulnerability
- Date Added
- 2025-05-01
- Patch Due Date
- 2025-05-22
- Ransomware Use
- Unknown
Technical details
- Published
- 2024-07-01
Frequently asked questions
What is CVE-2024-38475?
Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure. Substitutions in server context that use a backreferences or variables as the first segment of the substitution are affected. Some unsafe RewiteRules will be broken by this change and the rewrite flag "UnsafePrefixStat" can be used to opt back in once ensuring the substitution is appropriately constrained.
Is CVE-2024-38475 actively exploited?
Yes. CVE-2024-38475 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 5/22/2025.
What is the CVSS score for CVE-2024-38475?
CVE-2024-38475 has a CVSS v3 base score of 9.1 (CRITICAL severity).
Is CVE-2024-38475 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.
No credit card required · 30 free checks/month · Free API key
Other 2024 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).