Vulnerability record · CVE-2025-59775 · published 5 December 2025

CVE-2025-59775: Apache http server server-side request forgery (ssrf) vulnerability

Apache · Http Server

Server-Side Request Forgery (SSRF) vulnerability in Apache HTTP Server on Windows with AllowEncodedSlashes On and MergeSlashes Off allows to potentially leak NTLM hashes to a malicious server via SSRF and malicious requests or content Users are recommended to upgrade to version 2.4.66, which fixes the issue.

7.5 CVSS 3.1 High EPSS 0.82% · top 44.4% CWE-918 · Server-side request forgery (SSRF)

7.5CVSS 3.1 base score

0.82%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

2References

25 Sep 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Http Server Apache

References

Link	Tags
https://httpd.apache.org/security/vulnerabilities_24.html	Vendor Advisory
http://www.openwall.com/lists/oss-security/2025/12/04/6	Issue TrackingThird Party Advisory

Track CVE-2025-59775 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2021-42013Apache HTTP Server path traversal and RCE via incomplete fixThe fix for CVE-2021-41773 in Apache HTTP Server 2.4.50 was insufficient, leaving a path traversal flaw that lets attackers map URLs to files outside…KEVEPSS 100%analysed7 Oct 2021 9.8CVE-2021-41773Apache HTTP Server 2.4.49 path traversal and RCEA path normalization flaw introduced in Apache HTTP Server 2.4.49 lets attackers map URLs to files outside directories configured by Alias-like direc…KEVEPSS 100%analysed5 Oct 2021 9.1CVE-2024-38475Apache HTTP Server mod_rewrite improper escaping enables code executionApache HTTP Server 2.4.59 and earlier has an improper output escaping flaw in mod_rewrite. Substitutions in server context that use a backreference o…KEVEPSS 100%analysed1 Jul 2024 9.0CVE-2021-40438Apache HTTP Server mod_proxy SSRF via crafted URI pathA crafted request URI path can make mod_proxy forward the request to an origin server chosen by the remote user, an SSRF flaw in Apache HTTP Server 2…KEVEPSS 100%analysed16 Sep 2021 7.8CVE-2019-0211Apache HTTP Server scoreboard use-after-free local privilege escalationApache HTTP Server 2.4.17 through 2.4.38 with MPM event, worker or prefork contains a use-after-free in scoreboard handling. Code running in a less-p…KEVEPSS 65%analysed8 Apr 2019 10.0CVE-2010-0425Apache mod_isapi on Windows remote code execution via orphaned callbacksmod_isapi in Apache HTTP Server on Windows does not ensure request processing is complete before calling isapi_unload for an ISAPI .dll module, leavi…EPSS 94%analysed5 Mar 2010 10.0CVE-2005-2700Apache http server vulnerabilityssl_engine_kernel.c in mod_ssl before 2.8.24, when using "SSLVerifyClient optional" in the global virtual host configuration, does not properly enfor…EPSS 31%6 Sep 2005 10.0CVE-2004-0492Apache http server vulnerabilityHeap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31 allows remote attackers to cause a denial of service (process cra…EPSS 34%6 Aug 2004

Source: NIST National Vulnerability Database (record CVE-2025-59775), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.