What products are affected by CVE-2024-38475?

CVE-2024-38475 affects Apache HTTP Server. Refer to the vendor advisory and NVD record for affected versions.

Is there a public exploit for CVE-2024-38475?

Yes. Public exploit code or proof-of-concept has been identified for CVE-2024-38475. This lowers the barrier for exploitation and increases the urgency of patching. Organizations should prioritize remediation immediately.

What is the EPSS score for CVE-2024-38475?

CVE-2024-38475 has an EPSS score of 93.9%, placing it in the 100th percentile. This means it has a 93.9% probability of being exploited in the next 30 days, higher than 100% of all known vulnerabilities. EPSS (Exploit Prediction Scoring System) is maintained by FIRST and uses real-world threat data to estimate exploitation likelihood.

Actively Exploited — CISA KEV

CVE-2024-38475: Apache HTTP Server Vulnerability

Severity: Unknown | CVSS 3.1: N/A | KEV Added: 2025-05-01

What is CVE-2024-38475?

Apache HTTP Server contains an improper escaping of output vulnerability in mod_rewrite that 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.

Impact Analysis

Exploitation Probability (EPSS): 93.9% chance of exploitation in the next 30 days (100th percentile). This places the vulnerability in the highest risk tier — immediate action is critical.

Exploit Availability

Public exploit code or proof-of-concept is available for CVE-2024-38475. This significantly increases the risk of exploitation, as attackers can use or adapt existing exploit code rather than developing their own. A public exploit reference has been identified. Organizations should treat this as an urgent patching priority.

Is CVE-2024-38475 being exploited?

Yes. CVE-2024-38475 is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, restricted to CVEs with confirmed active exploitation in the wild. CISA added this vulnerability on 2025-05-01. Inclusion in KEV triggers the patching mandate under BOD 22-01 for U.S. federal civilian agencies, with a remediation deadline of 2025-05-22. Additionally, public exploit code is available, which lowers the barrier for attackers.

How to fix CVE-2024-38475

Upgrade to the patched version of the affected Apache project. For Apache HTTP Server, download the latest release from httpd.apache.org. For other Apache projects (Struts, Tomcat, Log4j), check the project-specific security page for the fixed version and migration notes. Check the Apache Security Reports page for the specific patch or update. CISA's Known Exploited Vulnerabilities catalog requires U.S. federal agencies to remediate this vulnerability by the due date shown below under Binding Operational Directive 22-01. Private organizations should treat KEV entries as priority-one patches because active exploitation has been confirmed in the wild.

Related Vulnerabilities

Other actively exploited vulnerabilities affecting HTTP Server:

CVE-2026-34197 (High 8.8) [same vendor] — Improper Input Validation, Improper Control of Generation of Code ('Code…

Frequently asked questions

Is CVE-2024-38475 critical?

CVE-2024-38475 has a CVSS 3.1 base score of N/A — Unknown severity. Prioritize based on exposure and the active exploitation signal from the KEV listing. The availability of public exploit code further increases the urgency.

Is CVE-2024-38475 being actively exploited?

Yes — CISA added CVE-2024-38475 to the Known Exploited Vulnerabilities catalog on 2025-05-01. Inclusion in KEV means CISA has confirmed in-the-wild exploitation. Public exploit code has also been identified, making exploitation accessible to a broader range of threat actors.

How do I patch CVE-2024-38475?

Apply the security update from Apache for HTTP Server. Federal agencies must remediate by 2025-05-22 under BOD 22-01. Refer to the Apache Security Reports for the official patch.

What is the CVSS score for CVE-2024-38475?

CVE-2024-38475 has a CVSS 3.1 base score of N/A, classifying it as Unknown severity.