What is CVE-2026-71966?

CVE-2026-71966 is a high-severity vulnerability in Usmannasir Cyberpanel, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-08-10.

How severe is CVE-2026-71966?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Usmannasir Cyberpanel

CVE-2026-71966

CyberPanel 2.4.3, fixed in commit eca0c3c, contains an authenticated command injection vulnerability in the remote backup transfer feature that allows authenticated attackers to execute arbitrary OS commands by controlling a remote server'…

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Usmannasir Cyberpanel — versions 0, eca0c3cbeb35af8eaae9fafb094e8ef3cd923643

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

disclosure@vulncheck.com (technical-description, exploit)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-71966?: CVE-2026-71966 is a high-severity vulnerability in Usmannasir Cyberpanel, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-08-10.
How severe is CVE-2026-71966?: High severity. CVSS v3 base score is 8.8 out of 10.