What’s Vulnerable › Vulnerabilities

CVE-2020-29390

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 39.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-11-30 · updated 2026-06-17
• Weakness: CWE-78

Description

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.

Affected products

• Zeroshell: 3.9.3

References

• https://blog.quake.so/post/zeroshell_linux_router_rce/
• https://blog.quake.so/post/zeroshell_linux_router_rce/

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