How severe is CVE-2025-66675?

CVE-2025-66675 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability high.

Is CVE-2025-66675 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-66675?

CVE-2025-66675 affects Apache Struts. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-66675?

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-2025-66675 have an EU (EUVD) identifier?

Yes. CVE-2025-66675 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202417.

When was CVE-2025-66675 published?

CVE-2025-66675 was published on 2025-12-10 and last updated on 2026-06-17.

CVE-2025-66675

CVE-2025-66675 is a high-severity vulnerability in Apache Struts with a CVSS 3.x base score of 8.2. 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-459.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-202417
Weakness: CWE-459
Affected product: Apache Struts
Published: 2025-12-10
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2025-66675?: 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
How severe is CVE-2025-66675?: CVE-2025-66675 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability high.
Is CVE-2025-66675 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-66675?: CVE-2025-66675 affects Apache Struts. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-66675?: 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-2025-66675 have an EU (EUVD) identifier?: Yes. CVE-2025-66675 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202417.
When was CVE-2025-66675 published?: CVE-2025-66675 was published on 2025-12-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*

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