CVE-2026-40573
NovumOS: Nova Interpreter Privilege Escalation
- State
- Published
- Severity
- 8.6 High
- Published
- Oct 30, 2026
- Updated
- Oct 30, 2026
- Reserved
- Apr 14, 2026
Description
NovumOS is a custom 32-bit operating system written in Zig and x86 Assembly. Prior to version 0.25-beta.1, the `Nova` interpreter runs in Ring 0 with unrestricted kernel-memory access. Loading a malicious `.nv` script through the shell permits a local user to execute code with kernel privileges without security checks. The advisory identifies VM initialization in `zig/nova/vm.zig` as the affected component; script execution is not isolated in a restricted Ring 3 privilege domain. This issue is fixed in version 0.25-beta.1.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.6 High | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H | GitHub_M |
Weaknesses
- CWE-250 Execution with Unnecessary Privileges
Affected Products
| Product | Versions |
|---|---|
NovumOSMinecAnton209 |
|
References
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