CVE-2026-16791: CWE-377: Insecure Temporary File in Lenovo XClarity Essentials OneCLI
CVE-2026-16791 is a low-severity vulnerability in Lenovo XClarity Essentials OneCLI for Linux versions 5.5.0 and below. It involves insecure temporary file creation that could allow a local low-privileged attacker to overwrite or truncate arbitrary local files when the program is run with elevated privileges.
AI Analysis
Technical Summary
This vulnerability (CWE-377) affects Lenovo XClarity Essentials OneCLI on Linux, specifically versions 5.5.0 and earlier. The issue arises from insecure handling of temporary files, enabling a local attacker with low privileges to manipulate files by overwriting or truncating them if the OneCLI tool is executed with elevated privileges. The CVSS v3.1 base score is 3.9, indicating low severity. No patch or remediation information is currently available, and there are no known exploits in the wild.
Potential Impact
An attacker with local low privileges could exploit this vulnerability to overwrite or truncate arbitrary local files with data generated by the OneCLI program when it runs with elevated privileges. This could lead to integrity issues or denial of service on affected files. There is no confidentiality impact reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict local access to trusted users and avoid running OneCLI with elevated privileges unnecessarily.
CVE-2026-16791: CWE-377: Insecure Temporary File in Lenovo XClarity Essentials OneCLI
Description
CVE-2026-16791 is a low-severity vulnerability in Lenovo XClarity Essentials OneCLI for Linux versions 5.5.0 and below. It involves insecure temporary file creation that could allow a local low-privileged attacker to overwrite or truncate arbitrary local files when the program is run with elevated privileges.
CVSS v3.1
Score 3.9low
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-377) affects Lenovo XClarity Essentials OneCLI on Linux, specifically versions 5.5.0 and earlier. The issue arises from insecure handling of temporary files, enabling a local attacker with low privileges to manipulate files by overwriting or truncating them if the OneCLI tool is executed with elevated privileges. The CVSS v3.1 base score is 3.9, indicating low severity. No patch or remediation information is currently available, and there are no known exploits in the wild.
Potential Impact
An attacker with local low privileges could exploit this vulnerability to overwrite or truncate arbitrary local files with data generated by the OneCLI program when it runs with elevated privileges. This could lead to integrity issues or denial of service on affected files. There is no confidentiality impact reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict local access to trusted users and avoid running OneCLI with elevated privileges unnecessarily.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- lenovo
- Date Reserved
- 2026-07-23T18:03:47.226Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a724791bf8831d5396138be
Added to database: 08/04/2026, 20:12:01 UTC
Last enriched: 08/04/2026, 20:28:31 UTC
Last updated: 08/05/2026, 02:00:57 UTC
Views: 8
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