CVE-2026-16791 in XClarity Essentials OneCLI

Summary

by MITRE • 08/04/2026

A temporary file creation vulnerability in the Linux version of Lenovo XClarity Essentials OneCLI 5.5.0 and below could allow a local low-privileged attacker to overwrite or truncate arbitrary local files with program-generated data when OneCLI is executed with elevated privileges.

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• Responsible: Lenovo
• Reservation: 07/23/2026
• Disclosure: 08/04/2026
• Moderation: accepted
• Entry: VDB-385952
• CPE: ready
• CWE: CWE-377 (confirmed)
• CVSS: 8.2 (VulDB)
• EPSS: 0.00000
• KEV: no
• Activities: very low

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-16791
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-16791
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-16791/