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. The vulnerability does not impact confidentiality but can affect integrity and availability. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability (CWE-377) in Lenovo XClarity Essentials OneCLI affects the Linux version 5.5.0 and earlier. It arises from insecure handling of temporary files, which allows a local attacker with low privileges to overwrite or truncate arbitrary files on the system if OneCLI is executed with elevated privileges. The CVSS 3.1 base score is 3.9, reflecting low severity due to the requirement for local access and user interaction. No vendor advisory or patch information is currently provided.
Potential Impact
An attacker with local low privileges could exploit this vulnerability to modify or truncate files on the system when OneCLI is run with elevated privileges. This could lead to integrity and availability impacts on affected files. Confidentiality is not affected. There is no evidence of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid running Lenovo XClarity Essentials OneCLI with elevated privileges unless necessary and restrict local access to trusted users only.
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. The vulnerability does not impact confidentiality but can affect integrity and availability. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
CVSS v3.1
Score 3.9low
Affected software
Lenovo
XClarity Essentials OneCLI
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-377) in Lenovo XClarity Essentials OneCLI affects the Linux version 5.5.0 and earlier. It arises from insecure handling of temporary files, which allows a local attacker with low privileges to overwrite or truncate arbitrary files on the system if OneCLI is executed with elevated privileges. The CVSS 3.1 base score is 3.9, reflecting low severity due to the requirement for local access and user interaction. No vendor advisory or patch information is currently provided.
Potential Impact
An attacker with local low privileges could exploit this vulnerability to modify or truncate files on the system when OneCLI is run with elevated privileges. This could lead to integrity and availability impacts on affected files. Confidentiality is not affected. There is no evidence of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid running Lenovo XClarity Essentials OneCLI with elevated privileges unless necessary and restrict local access to trusted users only.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- lenovo
- Date Reserved
- 2026-07-23T18:03:47.226Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a724791bf8831d5396138be
Added to database: 08/04/2026, 20:12:01 UTC
Last enriched: 08/12/2026, 15:33:40 UTC
Last updated: 09/17/2026, 22:01:33 UTC
Views: 59
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