# OS command injection in Lenovo Personal Cloud T2s and others

CVE record · `CVE-2026-6281`

- **Identifiers:** `CVE-2026-6281`
- **State:** Confirmed
- **Severity:** CVSS 8.7 High
- **Critical:** No
- **CNA:** lenovo
- **Weakness (CWE):** [CWE-78](https://cwe.mitre.org/data/definitions/78.html)
- **Tags:** [Command injection](https://agentprime.io/advisories/tag/command-injection.md)
- **Technologies:** [Lenovo Personal Cloud T2s](https://agentprime.io/advisories/technology/lenovo-personal-cloud-t2s.md) · [Lenovo Personal Cloud T2Pro](https://agentprime.io/advisories/technology/lenovo-personal-cloud-t2pro.md) · [Lenovo Personal Cloud X1s](https://agentprime.io/advisories/technology/lenovo-personal-cloud-x1s.md) · [Lenovo Home Storage Hub T20](https://agentprime.io/advisories/technology/lenovo-home-storage-hub-t20.md) · [Lenovo Home Storage Hub X20](https://agentprime.io/advisories/technology/lenovo-home-storage-hub-x20.md) · [Lenovo Personal Cloud T1](https://agentprime.io/advisories/technology/lenovo-personal-cloud-t1.md) · [Lenovo Personal Cloud A1](https://agentprime.io/advisories/technology/lenovo-personal-cloud-a1.md) · [Lenovo Personal Cloud A1s](https://agentprime.io/advisories/technology/lenovo-personal-cloud-a1s.md) · [Lenovo Personal Cloud T2](https://agentprime.io/advisories/technology/lenovo-personal-cloud-t2.md) · [Lenovo Personal Cloud X1](https://agentprime.io/advisories/technology/lenovo-personal-cloud-x1.md)
- **Published:** 13 May 2026
- **Updated:** 13 May 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: lenovo) at 13 May 2026, 14:15 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Lenovo. Product: Personal Cloud T2s.
  - affected: `before 5.5.6.t2s.3` (custom)
  - Other versions: unaffected
- Vendor: Lenovo. Product: Personal Cloud T2Pro.
  - affected: `before 5.4.8.t2pro.2` (custom)
  - Other versions: unaffected
- Vendor: Lenovo. Product: Personal Cloud X1s.
  - affected: `before 5.4.8.x1s.2` (custom)
  - Other versions: unaffected
- Vendor: Lenovo. Product: Home Storage Hub T20.
  - affected: `before 5.5.8.t20.1` (custom)
  - Other versions: unaffected
- Vendor: Lenovo. Product: Home Storage Hub X20.
  - affected: `before 5.4.4.x20.1` (custom)
  - Other versions: unaffected
- Vendor: Lenovo. Product: Personal Cloud T1.
  - affected: `5.4.0.t1.6 and earlier` (custom)
  - Other versions: unaffected
- Vendor: Lenovo. Product: Personal Cloud A1.
  - affected: `5.4.2.a1.3 and earlier` (custom)
  - Other versions: unaffected
- Vendor: Lenovo. Product: Personal Cloud A1s.
  - affected: `5.5.6.a1s and earlier` (custom)
  - Other versions: unaffected
- Vendor: Lenovo. Product: Personal Cloud T2.
  - affected: `5.4.5.t2.2 and earlier` (custom)
  - Other versions: unaffected
- Vendor: Lenovo. Product: Personal Cloud X1.
  - affected: `5.4.7.x1.1 and earlier` (custom)
  - Other versions: unaffected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 8.7 High, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`, from CNA (lenovo) (used for this record)
- 8.8 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`, from CNA (lenovo)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0044, the 39th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 13 May 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-6281](https://www.cve.org/CVERecord?id=CVE-2026-6281)
- [NVD: CVE-2026-6281](https://nvd.nist.gov/vuln/detail/CVE-2026-6281)

### References from the CNA

- <https://iknow.lenovo.com.cn/detail/440274>
- <https://pc.lenovo.com.cn/tips/Ann/t1_eol.html>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-6281>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-6281/>. Everything for agents: <https://agentprime.io/llms.txt>.