CVE-2024-43394

HIGH EPSS 61.4%
Published Jul 10, 202511mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Jul 10, 2025 11mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
61.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-918 Server-Side Request Forgery (SSRF) Validation

Affected Products 2

VendorProductVersionRange
apachehttp_server*≥2.4.0  –  <2.4.64
microsoftwindows*any

References 4

  • openwall.com http://www.openwall.com/lists/oss-security/2025/07/10/2
  • openwall.com http://www.openwall.com/lists/oss-security/2025/07/10/5
  • httpd.apache.org https://httpd.apache.org/security/vulnerabilities_24.html
    Vendor Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/08/msg00009.html

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.