How severe is CVE-2025-66429?

CVE-2025-66429 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-66429 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-66429?

CVE-2025-66429 affects Cpanel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-66429?

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-2025-66429 have an EU (EUVD) identifier?

Yes. CVE-2025-66429 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202876.

When was CVE-2025-66429 published?

CVE-2025-66429 was published on 2025-12-11 and last updated on 2026-06-17.

CVE-2025-66429

CVE-2025-66429 is a high-severity vulnerability in Cpanel with a CVSS 3.x base score of 8.8. 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-22.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-202876
Weakness: CWE-22
Affected product: Cpanel
Published: 2025-12-11
Last modified: 2026-06-17

Description

An issue was discovered in cPanel 110 through 132. A directory traversal vulnerability within the Team Manager API allows for overwrite of an arbitrary file. This can allow for privilege escalation to the root user.

Frequently asked questions

What is CVE-2025-66429?: An issue was discovered in cPanel 110 through 132. A directory traversal vulnerability within the Team Manager API allows for overwrite of an arbitrary file. This can allow for privilege escalation to the root user.
How severe is CVE-2025-66429?: CVE-2025-66429 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-66429 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-66429?: CVE-2025-66429 affects Cpanel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-66429?: 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-2025-66429 have an EU (EUVD) identifier?: Yes. CVE-2025-66429 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202876.
When was CVE-2025-66429 published?: CVE-2025-66429 was published on 2025-12-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:*

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