CVE-2026-65639

Summary

OS command injection in the advanced-rule parser of ConfigServer Security & Firewall allows a remote attacker who controls a configured allow/deny feed to execute arbitrary commands as root, due to insufficient validation of feed-supplied rule data.

The vulnerability affects versions of the software originally distributed by ConfigServer, as well as versions of the WebPros-maintained fork that contain the vulnerable code. WebPros has addressed the vulnerability in version 16.30. Other forks or independently maintained versions of ConfigServer Security & Firewall (CSF) may also be affected and should be evaluated independently.

Affected Software

VendorProductVersion RangeStatus
WebProsConfigServer Security & Firewall2.15 < 16.30affected
ConfigServerConfigServer Security & Firewall2.15 < *affected

Weaknesses

  • CWE-78: CWE-78 OS Command Injection

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References