Predictable Temporary File Symlink Vulnerability in Lenovo XClarity Essentials OneCLI
Summary
| CVE | CVE-2026-16791 |
|---|---|
| State | PUBLISHED |
| Assigner | lenovo |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-04 20:16:49 UTC |
| Updated | 2026-08-05 16:16:53 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v4.0 1 LOW from [email protected]
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.000880000 probability, percentile 0.004480000 (date 2026-08-09)
Problem Types: CWE-377 | CWE-377 CWE-377: Insecure Temporary File
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 1 | LOW | CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/C... |
| 4.0 | CNA | CVSS | 1 | LOW | CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N |
| 3.1 | [email protected] | Secondary | 3.9 | LOW | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L |
| 3.1 | CNA | CVSS | 3.9 | LOW | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L |
CVSS v4.0 Breakdown
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Lenovo | XClarity Essentials OneCLI | affected 5.6 custom | Linux |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| support.lenovo.com/us/en/solutions/ht116433 | [email protected] | support.lenovo.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Lenovo thanks Christopher Lusk of North Echo Security Research for reporting this vulnerability. (en)
Additional Advisory Data
Solutions
CNA: Update the Linux version of Lenovo XClarity Essentials OneCLI to the version indicated in the advisory or higher - https://support.lenovo.com/us/en/solutions/ht116433