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CVE-2024-43394

7.5 · HIGH

Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via  mod_rewrite or apache expressions that pass unvalidated request…

Published Jul 10, 2025CWE-918EPSS 1.27%

Overview

CVE-2024-43394 is a high-severity vulnerability. It was published on July 10, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via 

mod_rewrite or apache expressions that pass unvalidated request input.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.63.

Note:  The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths.

The server offers limited protection against administrators directing the server to open UNC paths.

Windows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refhttpd.apache.org/security/vulnerabilities_24.htmlRefwww.openwall.com/lists/oss-security/2025/07/10/2Refwww.openwall.com/lists/oss-security/2025/07/10/5Reflists.debian.org/debian-lts-announce/2025/08/msg00009.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-43394?

CVE-2024-43394 is a high-severity vulnerability. It was published on July 10, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-43394?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-43394?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-43394?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-43394 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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