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CVE-2009-2936

HIGH · CVSS 7.5EPSS 63.8%EU EUVD

The Command Line Interface (aka Server CLI or administration interface) in the master process in the reverse proxy server in Varnish before 2.1.0 does not require authentication for commands received through a TCP port, which allows remote attackers to (1) execute arbitrary code via a vcl.inline directive that provides a VCL configuration file containing inline C code; (2) change the ownership of the master process via param.set, stop, and start directives; (3) read the initial line of an arbitrary file via a vcl.load directive; or (4) conduct cross-site request forgery (CSRF) attacks that leverage a victim's location on a trusted network and improper input validation of directives. NOTE: the vendor disputes this report, saying that it is "fundamentally misguided and pointless.

Key facts

CVSS score
7.5 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness (CWE)
CWE-287
EPSS score
63.8% (99th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2009-2924)
Published
April 5, 2010
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-2924 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish
  • varnish.projects.linpro / varnish

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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