CVE-2026-6281: RCE in Lenovo Personal Cloud Storage
Platform
linux
Component
lenovo-personal-cloud-storage
Fixed in
5.5.8.t20.1
CVE-2026-6281 describes a remote authenticated command execution (RCE) vulnerability discovered in Lenovo Personal Cloud Storage. This flaw allows a malicious actor on the local network to execute arbitrary commands on the affected device, potentially leading to complete system compromise. The vulnerability impacts versions from 0.0.0 up to and including 5.5.8.t20.1, with a fix available in version 5.5.8.t20.1.
Impact and Attack Scenarios
Successful exploitation of CVE-2026-6281 grants an attacker complete control over the Lenovo Personal Cloud Storage device. This includes the ability to read, modify, and delete stored data, install malware, and pivot to other systems on the local network. The impact is particularly severe as the vulnerability requires only local network access and authentication, lowering the barrier to entry for attackers. A compromised device could be used as a launchpad for further attacks, potentially leading to data breaches and disruption of services. The blast radius extends to any data stored on the device and any systems accessible from it.
Exploitation Context
The vulnerability's exploitation context is currently limited. It is not listed on KEV or EPSS, suggesting a low to medium probability of exploitation in the wild. Public proof-of-concept (POC) code is not currently available. The vulnerability was published on 2026-05-13, and active campaigns are not currently known. Refer to the Lenovo security advisory for more details.
Threat Intelligence
Exploit Status
CISA SSVC
CVSS Vector
What do these metrics mean?
- Attack Vector
- Network — remotely exploitable over the internet. No physical or local access required. Widest attack surface.
- Attack Complexity
- Low — no special conditions required. Attacker can exploit reliably without depending on rare configurations or timing.
- Privileges Required
- Low — any valid user account is sufficient. Basic authenticated access required.
- User Interaction
- None — attack is automatic and silent. Victim does nothing: no click, no file open.
- Scope
- Unchanged — impact is limited to the vulnerable component itself.
- Confidentiality
- High — complete confidentiality loss. Attacker can read all data: credentials, keys, personal data.
- Integrity
- High — attacker can write, modify, or delete any data: databases, config files, or code.
- Availability
- High — complete crash or resource exhaustion. Full denial of service.
Affected Software
Weakness Classification (CWE)
Timeline
- Reserved
- Published
Mitigation and Workarounds
The primary mitigation for CVE-2026-6281 is to immediately upgrade Lenovo Personal Cloud Storage to version 5.5.8.t20.1 or later. If upgrading is not immediately feasible, consider segmenting the affected device from the rest of the network to limit potential damage. While a direct workaround isn't available, restricting network access to the device and implementing strong authentication practices can reduce the attack surface. Monitor network traffic for suspicious activity originating from the device. After upgrading, confirm the vulnerability is resolved by attempting to execute a benign command via the authenticated interface and verifying it is denied.
How to fix
Actualice su dispositivo Lenovo Personal Cloud Storage a la versión 5.5.6 o superior (T2s), 5.4.8 o superior (T2pro, X1s), 5.5.8 o superior (T20), 5.4.4 o superior (X20), o 5.4.6 o superior para mitigar la vulnerabilidad. Consulte la documentación de Lenovo para obtener instrucciones específicas de actualización.
Frequently asked questions
What is CVE-2026-6281 — RCE in Lenovo Personal Cloud Storage?
CVE-2026-6281 is a remote authenticated command execution vulnerability affecting Lenovo Personal Cloud Storage versions 0.0.0 through 5.5.8.t20.1, allowing a local network attacker to execute arbitrary commands.
Am I affected by CVE-2026-6281 in Lenovo Personal Cloud Storage?
If you are using Lenovo Personal Cloud Storage version 0.0.0 through 5.5.8.t20.1, you are potentially affected by this vulnerability. Check your version and upgrade if necessary.
How do I fix CVE-2026-6281 in Lenovo Personal Cloud Storage?
Upgrade Lenovo Personal Cloud Storage to version 5.5.8.t20.1 or later to remediate the vulnerability. If upgrading is not possible, segment the device from the network.
Is CVE-2026-6281 being actively exploited?
Currently, there are no known active campaigns exploiting CVE-2026-6281, but it's crucial to apply the patch to prevent future exploitation.
Where can I find the official Lenovo advisory for CVE-2026-6281?
Refer to the official Lenovo security advisory for detailed information and updates regarding CVE-2026-6281. Check the Lenovo support website for the latest advisory.
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