Red Magic 11 Pro (NX809J): Improper Privilege Management
CVE-2026-40002 is a high-severity improper privilege management vulnerability in Red Magic 11 Pro (NX809J) from ZTE, with a CVSS 3.1 base score of 8.8 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. Affected Red Magic 11 Pro (NX809J) versions: GEN_NEEA_NX809J V1.0.0B14MR1 through V1.0.0B14MR1. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.12% 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 Nubia-in Nx809j Firmware to GEN_NEEA_NX809JV1.0.0B16MR1 or a later version.
- Read the advisory on support.zte.com.cn for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| ZTE | Red Magic 11 Pro (NX809J) | GEN_NEEA_NX809J V1.0.0B14MR1 through V1.0.0B14MR1 | Not stated |
| ZTE | Nubia-in Nx809j Firmware | before GEN_NEEA_NX809JV1.0.0B16MR1 | GEN_NEEA_NX809JV1.0.0B16MR1 |
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
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- 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:L/PR:L/UI:N/S:C/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 5.0 | Medium | CNA (zte.com.cn) |
| CVSS 3.1 | 8.8 | High | NVD |
Official description
Red Magic 11 Pro (NX809J) contains a vulnerability that allows non-privileged applications to trigger sensitive operations. The vulnerability stems from the lack of validation for applications accessing the service interface. Exploiting this vulnerability, an attacker can write files to specific partitions and set writable system properties.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Privilege Management
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
How developers prevent this class of flaw
- Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
- Follow the principle of least privilege when assigning access rights to entities in a software system.
- Consider following the principle of separation of privilege. Require multiple conditions to be met before permitting access to a system resource.
More Improper Privilege Management vulnerabilities (CWE-269)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Recent Improper Privilege Management vulnerabilities
- 7.3 High severity
- 9.8 Critical severity
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
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