Lenovo Legion Zone: Insecure deserialization allows code execution
Summary
The Lenovo Legion Zone application, a Windows utility for Lenovo gaming hardware sold exclusively in the Chinese market, contains a potential vulnerability. An attacker on the same logical network may be able to execute arbitrary code. The CNA record classifies the flaw as CWE-502 with CVSS 4.0 8.6, while VulDB classifies it as CWE-78 (OS command injection) with CVSS 6.3, so the weakness class is disputed.
Affected
- Lenovo Legion Zone application versions before 2.0.28.8182
- Versions below 2.0.28.8182 are affected according to the CNA record. Unknown: which exact builds are affected below that version, and whether Swiss or European Lenovo builds are affected.
Fixed in
- Update Legion Zone to version 2.0.28.8182 or later.
Workaround
- No vendor workaround known. Unknown.
- Interim measures (not from the vendor): block or segment network paths to affected hosts, and uninstall Legion Zone on devices that do not need it.
Exploitation
- No known exploitation in the wild.
- Not listed in CISA KEV at the time of checking.
- CISA SSVC: exploitation none, not automatable, total technical impact.
- No public proof of concept reported by TheHackerWire; VulDB reports no available exploit.
Our recommendation
- Inventory Legion Zone installations and versions, including on Legion laptops and desktops used for business.
- Update Legion Zone to version 2.0.28.8182 or later.
- Uninstall Legion Zone on devices where it is not needed.
- Keep affected devices off untrusted network segments until patched.
- Priority: medium for SMEs with Lenovo Legion devices, low otherwise.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Lenovo advisory (iKnow) iknow.lenovo.com.cn
- VulDB entry 421018 vuldb.com
- Vulners CNNVD record vulners.com
- Vulners PT-2026-115330 vulners.com
- OpenCVE record app.opencve.io
- TheHackerWire vulnerability page www.thehackerwire.com
- ThreatInt CVE record cve.threatint.com
- Stack.watch Legion Zone stack.watch
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 1 Nov 2026, 07:56.
Original description (NVD)
A potential vulnerability was reported in the Lenovo Legion Zone application, distributed exclusively in the Chinese market, that could allow an attacker on the same logical network to execute arbitrary code.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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