CVE-2025-59775
Apache HTTP Server: NTLM Leakage on Windows through UNC SSRF
7.5
HIGH
CVSS 3.1
EPSS 0.06%
Description
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.
How to fix CVE-2025-59775
To remediate CVE-2025-59775, upgrade the affected package to a fixed version below.
- —upgrade to 2.4.66-r0 or later
- —upgrade to 2.4.66 or later
- —upgrade to 2.4.66-1~deb11u1 or later
Is CVE-2025-59775 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2.4.66-r0
- >= 2.4.0, < 2.4.66
- from 0, < 2.4.66-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |