How severe is CVE-2025-67738?

CVE-2025-67738 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-67738 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-67738?

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-2025-67738 have an EU (EUVD) identifier?

Yes. CVE-2025-67738 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202665.

When was CVE-2025-67738 published?

CVE-2025-67738 was published on 2025-12-11 and last updated on 2026-06-17.

CVE-2025-67738

CVE-2025-67738 is a high-severity vulnerability with a CVSS 3.x base score of 8.5. 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-78.

Key facts

Severity: High (CVSS 3.x base score 8.5)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-202665
Weakness: CWE-78
Published: 2025-12-11
Last modified: 2026-06-17

Description

squid/cachemgr.cgi in Webmin before 2.600 does not properly quote arguments. This is relevant if Webmin's Squid module and its Cache Manager feature are available, and an untrusted party is able to authenticate to Webmin and has certain Cache Manager permissions (the "cms" security option).

Frequently asked questions

What is CVE-2025-67738?: squid/cachemgr.cgi in Webmin before 2.600 does not properly quote arguments. This is relevant if Webmin's Squid module and its Cache Manager feature are available, and an untrusted party is able to authenticate to Webmin and has certain Cache Manager permissions (the "cms" security option).
How severe is CVE-2025-67738?: CVE-2025-67738 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-67738 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-67738?: 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-2025-67738 have an EU (EUVD) identifier?: Yes. CVE-2025-67738 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202665.
When was CVE-2025-67738 published?: CVE-2025-67738 was published on 2025-12-11 and last updated on 2026-06-17.

References

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