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VulnerabilityPublished

CVE-2026-16791: Lenovo XClarity Essentials OneCLI · Insecure Temporary File

Affects Lenovo XClarity Essentials OneCLISource CVE Database V5

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Not known to be exploited · CVSS 3.9 Low : upgrade to 5.6 when convenient.

Data as of 3 Nov 2026, 22:58 UTC

CVSS 3.1 base score
3.9Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 5.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.

What to do

Upgrade Lenovo XClarity Essentials OneCLI to 5.6.

Affected software

ProductAffectedFixed in
LenovoXClarity Essentials OneCLIAffected
  • <5.6
Fixed in
  • 5.6

AI-suggested

If you cannot patch yet, avoid running Lenovo XClarity Essentials OneCLI with elevated privileges unless necessary and restrict local access to trusted users only.

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. There are no known exploits in the wild at this time.

References

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