Arbitrary Code Injection Affecting cobbler package, versions <2.4.1-0ubuntu2+esm1


Severity

Recommended
high

Based on Ubuntu security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
86.83% (100th percentile)

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  • Snyk IDSNYK-UBUNTU1604-COBBLER-1726905
  • published22 Mar 2026
  • disclosed4 Oct 2021

Introduced: 4 Oct 2021

CVE-2021-40323  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 cobbler to version 2.4.1-0ubuntu2+esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cobbler package and not the cobbler package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Cobbler before 3.3.0 allows log poisoning, and resultant Remote Code Execution, via an XMLRPC method that logs to the logfile for template injection.

CVSS Base Scores

version 3.1