Is CVE-2009-0545 actively exploited?

CVE-2009-0545 has no public evidence of in-the-wild exploitation as of 2026-04-23.

What is the CVSS score for CVE-2009-0545?

CVE-2009-0545 has a CVSS score of 10 (UNKNOWN severity). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C.

How do I patch CVE-2009-0545?

Patch guidance is available from zeroshell security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2009-0545.

CVE-2009-0545 - remediation guidance & executive summary

Q: Which products are affected by CVE-2009-0545?

11 products: zeroshell zeroshell, zeroshell zeroshell, zeroshell zeroshell, zeroshell zeroshell, zeroshell zeroshell, and 6 more.

Description

cgi-bin/kerbynet in ZeroShell 1.0beta11 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in the type parameter in a NoAuthREQ x509List action.

CVSS Metrics

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Access Vector: network
Access Cmplx: low
Auth: none
Confidentiality: complete
Integrity: complete
Availability: complete
Weaknesses: CWE-20 · Improper Input Validation

Metadata

Primary Vendor: ZEROSHELL
Published: 2/12/2009
Last Modified: 4/23/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

zeroshell : zeroshellzeroshell : zeroshellzeroshell : zeroshellzeroshell : zeroshellzeroshell : zeroshellzeroshell : zeroshellzeroshell : zeroshellzeroshell : zeroshellzeroshell : zeroshellzeroshell : zeroshellzeroshell : zeroshell

Remediation Guidance

Executive Summary

View on NIST NVD