How severe is CVE-2017-18450?

CVE-2017-18450 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2017-18450 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-18450?

CVE-2017-18450 affects Cpanel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-18450?

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

When was CVE-2017-18450 published?

CVE-2017-18450 was published on 2019-08-02 and last updated on 2026-06-17.

CVE-2017-18450

CVE-2017-18450 is a medium-severity vulnerability in Cpanel with a CVSS 3.x base score of 4.5. 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-264.

Key facts

Severity: Medium (CVSS 3.x base score 4.5)
CVSS v2: 4.4
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Cpanel
Published: 2019-08-02
Last modified: 2026-06-17

Description

cPanel before 64.0.21 allows certain file-chmod operations via /scripts/convert_roundcube_mysql2sqlite (SEC-255).

Frequently asked questions

What is CVE-2017-18450?: cPanel before 64.0.21 allows certain file-chmod operations via /scripts/convert_roundcube_mysql2sqlite (SEC-255).
How severe is CVE-2017-18450?: CVE-2017-18450 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2017-18450 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-18450?: CVE-2017-18450 affects Cpanel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-18450?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-18450 published?: CVE-2017-18450 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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