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CVE-2021-42852

A command injection vulnerability was reported in some Lenovo Personal Cloud Storage devices that could allow an authenticated user to…

High8.0EPSS 0.78%
Published
Updated
Reserved
Assigned by
lenovo

Description

A command injection vulnerability was reported in some Lenovo Personal Cloud Storage devices that could allow an authenticated user to execute operating system commands by sending a crafted packet to the device.

Timeline

  1. ID reserved

    By lenovo

  2. · 7 months later

    Published

  3. · 2 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2021-42852, by who scored it
Scored byCVSSScoreVector
lenovoCNA (assigner)3.1High8.0CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Modified3.1High8.0CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.78% · top 44% of all CVEs (7 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.0.

Weakness

Affected products

What to do

Solution: Update to the Lenovo Personal Cloud Storage device firmware listed in the product table in LEN-73439.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .