How severe is CVE-2025-59775?

CVE-2025-59775 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-59775 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-59775?

CVE-2025-59775 affects Apache Http Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-59775?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-59775 have an EU (EUVD) identifier?

Yes. CVE-2025-59775 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201394.

When was CVE-2025-59775 published?

CVE-2025-59775 was published on 2025-12-05 and last updated on 2026-06-17.

CVE-2025-59775

CVE-2025-59775 is a high-severity vulnerability in Apache Http Server with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-201394
Weakness: CWE-918
Affected product: Apache Http Server
Published: 2025-12-05
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-59775?: 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 severe is CVE-2025-59775?: CVE-2025-59775 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-59775 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-59775?: CVE-2025-59775 affects Apache Http Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-59775?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-59775 have an EU (EUVD) identifier?: Yes. CVE-2025-59775 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201394.
When was CVE-2025-59775 published?: CVE-2025-59775 was published on 2025-12-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*

More vulnerabilities in Apache Http Server

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All CVEs affecting Apache Http Server →

Other CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities

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CVE-2026-57106 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Data Quality allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-15409 — Critical (CVSS 10.0): A Server-side request forgery (SSRF) vulnerability has been identified in the SMA1000 Appliance Work Place interface. A…

Browse all CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

50.255.62.89 (ipv4-addr)
37.120.213.13 (ipv4-addr)
61.76.112.4 (ipv4-addr)
46.101.216.224 (ipv4-addr)
45.120.115.150 (ipv4-addr)
41.89.227.164 (ipv4-addr)
41.128.181.199 (ipv4-addr)
37.58.136.133 (ipv4-addr)