PatchTheCVECVE-2021-42848: An information disclosure vulnerability was reported in some Lenovo Personal Cloud Storage devices that could
CVE-2021-42848 is a medium-severity flaw (CVSS 4.3) affecting a1 firmware, t1 firmware, x1 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An information disclosure vulnerability was reported in some Lenovo Personal Cloud Storage devices that could allow an unauthenticated user to retrieve device and networking details.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.3 (Medium) |
| Attack vector | Adjacent network |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.8% (top 45%) |
| CISA exploited list | No |
| Weakness | CWE-862 |
| Published | 2022-05-18 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-42848?
a1 firmware: upgrade to 5.3.6.a1; t1 firmware: upgrade to 5.3.6.t1; x1 firmware: upgrade to 5.3.8.x1. Exact commands for each OS are on this page.
Is CVE-2021-42848 being exploited?
CVE-2021-42848 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-42848 affect?
CVE-2021-42848 affects a1 firmware, t1 firmware, x1 firmware. Severity is medium (CVSS 4.3). An information disclosure vulnerability was reported in some Lenovo Personal Cloud Storage devices that could allow an unauthenticated user to retrieve device and networking details.
How urgent is CVE-2021-42848?
Priority 29/100. No elevated risk signals yet.
Software pages
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