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TI-2021-18395 Aliases CVE-2021-41738GHSA-qp5f-6g86-h75x

ZeroShell 3.9.5 has a command injection vulnerability in /cgi-bin/kerbynet IP parameter…

Priority MEDIUM 42CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.

Summary

ZeroShell 3.9.5 has a command injection vulnerability in /cgi-bin/kerbynet IP parameter, which may allow an authenticated attacker to execute system commands.

Why it matters now

EPSS 0.0181 78th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:zeroshell:zeroshell:3.9.5:*:*:*:*:*:*:*3.9.5VulnerableZeroshell
  • cpe:2.3:o:zeroshell:zeroshell:3.9.5:*:*:*:*:*:*:* Versions 3.9.5 Vulnerable ·Zeroshell

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-41738
  2. 2026-10-03 Alias added: GHSA-qp5f-6g86-h75x

References

Other 1

  • TI-2009-00524 cgi-bin/kerbynet in ZeroShell 1.0beta11 and earlier allows remote attackers to execute… CVSS 2.0HIGH 10.0
  • TI-2019-09518 Zeroshell 3.9.0 is prone to a remote command execution vulnerability. CVSS 3.0CRITICAL 9.8
  • TI-2020-17668 Zeroshell 3.9.3 contains a command injection vulnerability in the /cgi-bin/kerbynet… CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences