Legion Zone: Insecure Inherited Permissions
CVE-2026-9046 is a high-severity insecure inherited permissions vulnerability in Legion Zone from Lenovo, with a CVSS 3.1 base score of 7.0 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists version 2.0.26 as the first without the flaw, so updating Legion Zone to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.13% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Legion Zone to 2.0.26 or a later version.
- Update App Store to 9.0.29 or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Lenovo | Legion Zone | before 2.0.26 | 2.0.26 |
| Lenovo | App Store | before 9.0.29 | 9.0.29 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- HighSuccess depends on conditions outside the attacker's control.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (lenovo.com).
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 7.3 | High | CNA (lenovo.com) |
| CVSS 3.1 | 7.0 | High | CNA (lenovo.com) |
Official description
A potential insecure permissions vulnerability was reported in Legion Zone and the Lenovo App Store Windows applications, distributed exclusively in the Chinese market, that when installed on a non‑system partition, could allow a local user to execute arbitrary code.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Insecure Inherited Permissions
A product defines a set of insecure permissions that are inherited by objects that are created by the program.
How developers prevent this class of flaw
- Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
- Compartmentalize the system to have safe areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
More Insecure Inherited Permissions vulnerabilities (CWE-277)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
References
Other references
Other vulnerabilities in Legion Zone
- 7.5 High severity
Recent Insecure Inherited Permissions vulnerabilities
- 7.2 High severity
- 7.0 High severity
- 7.7 High severity
- 7.1 High severity
- 8.3 High severity
- 9.8 Critical severity
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