How severe is CVE-2017-18430?

CVE-2017-18430 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2017-18430 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-18430?

CVE-2017-18430 affects Cpanel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-18430?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-18430 published?

CVE-2017-18430 was published on 2019-08-02 and last updated on 2026-06-17.

CVE-2017-18430

CVE-2017-18430 is a medium-severity vulnerability in Cpanel with a CVSS 3.x base score of 4.7. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
CVSS v2: 4.6
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cpanel
Published: 2019-08-02
Last modified: 2026-06-17

Description

In cPanel before 66.0.2, user and group ownership may be incorrectly set when using reassign_post_terminate_cruft (SEC-294).

Frequently asked questions

What is CVE-2017-18430?: In cPanel before 66.0.2, user and group ownership may be incorrectly set when using reassign_post_terminate_cruft (SEC-294).
How severe is CVE-2017-18430?: CVE-2017-18430 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2017-18430 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-18430?: CVE-2017-18430 affects Cpanel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-18430?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-18430 published?: CVE-2017-18430 was published on 2019-08-02 and last updated on 2026-06-17.

References

Affected products (1)

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

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