Vulnerability in Usmannasir Cyberpanel
CVE-2026-71965
CyberPanel 2.4.3, fixed in commit eca0c3c, contains an authenticated remote code execution vulnerability in the remote backup feature that allows authenticated attackers to gain root-level SSH access by supplying a malicious remote server address. Attackers can exploit the unverified SSH public key retrieval process to write an attacker-controlled public key directly to /root/.ssh/authorized_keys, granting persistent root access to the host system.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (38.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.001
Affected products
- Usmannasir Cyberpanel — versions 0, eca0c3cbeb35af8eaae9fafb094e8ef3cd923643
Weakness classification (CWE)
References
- themcsam.github.io/posts/cyberpanel-2.4.3-vulnerabilties/ (technical-description, exploit)
- github.com/usmannasir/cyberpanel/commit/eca0c3cbeb35af8eaae9fafb094e8ef3cd923643 (patch)
- www.vulncheck.com/advisories/cyberpanel-authenticated-rce-via-remote-backup-fea… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-71965?
- CVE-2026-71965 is a high-severity vulnerability in Usmannasir Cyberpanel, classified under Insufficient Verification of Data Authenticity. CVSS score: 8.8/10. Published 2026-08-10.
- How severe is CVE-2026-71965?
- High severity. CVSS v3 base score is 8.8 out of 10.