CVE-2025-66675 | Apache Struts: File leak in multipart request processing causes disk exhaustion (DoS) - version ranges fixed

Denial of Service vulnerability in Apache Struts, file leak in multipart request processing causes disk exhaustion. This issue affects Apache Struts: from 2.0.0 through 6.7.4, from 7.0.0 through 7.0.3. Users are recommended to upgrade to version 6.8.0 or 7.1.1, which fixes the issue. It's related to  https://cve.org/CVERecord?id=CVE-2025-64775  - this CVE addresses missing affected version 6.7.4

Published: 2025-12-10 Last update: 2025-12-16 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-66675 is rated Moderate Risk (47.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.20%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-66675

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-20 0.15% 0.20% +0.05%
2 2026-05-08 0.19% 0.15% -0.04%
3 2026-04-11 — 0.19% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-66675

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.2 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 4.2 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-66675

GitHub Security Advisory for CVE-2025-66675

GHSA-rg58-xhh7-mqjw · Severity: high · Ecosystem: maven — Apache Struts has a Denial of Service vulnerability

Affected software / configurations for CVE-2025-66675

Vendor Product Version Raw CPE
apache struts >= 2.0.0, <= 2.3.37 cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*
apache struts >= 2.5.0, <= 2.5.33 cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*
apache struts >= 6.0.0, < 6.8.0 cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*
apache struts >= 7.0.0, < 7.1.1 cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*

References for CVE-2025-66675

cvelogic Threat Intelligence