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CVE-2017-18477

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-08-05 · updated 2026-06-17
Weakness: CWE-254

Description

In cPanel before 62.0.4, Exim transports could execute in the context of the nobody account (SEC-206).

Affected products

WebPros cPanel: from 11.54.0.0 before 11.54.0.36; from 55.9999.61 before 56.0.43; from 57.9999.48 before 58.0.43; from 59.9999.58 before 60.0.35; from 61.9999.55 before 62.0.4 — fixed in 11.54.0.36, 56.0.43, 58.0.43, 60.0.35, 62.0.4

How to fix

Upgrade to a fixed version: WebPros cPanel 11.54.0.36, 56.0.43, 58.0.43, 60.0.35. Check the vendor advisory for mitigations.

References

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