Zeroshell 3.9.3 contains a command injection vulnerability in the /cgi-bin/kerbynet…
Priority HIGH 69CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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 3.9.3 contains a command injection vulnerability in the /cgi-bin/kerbynet StartSessionSubmit parameter that could allow an unauthenticated attacker to execute a system command by using shell metacharacters and the %0a character.
Why it matters now
EPSS 0.39565 98th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-29390
- 2026-10-03 Alias added: GHSA-wfh6-xhqh-h5xw
References
More Zeroshell vulnerabilities
- 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-2021-18395 ZeroShell 3.9.5 has a command injection vulnerability in /cgi-bin/kerbynet IP parameter… CVSS 3.1HIGH 8.8
Sources
- CVE-2020-29390 · CVE Program
- CVE-2020-29390 · NVD
- FIRST EPSS
- GHSA-wfh6-xhqh-h5xw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences