NovumOS: Nova Interpreter Privilege Escalation

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-40573
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-30 21:16:53 UTC
Updated2026-10-30 21:16:53 UTC
DescriptionNovumOS 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.

Risk And Classification

Primary CVSS: v3.1 8.6 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS: 0.001290000 probability, percentile 0.025280000 (date 2026-10-31)

Problem Types: CWE-250 | CWE-250 CWE-250: Execution with Unnecessary Privileges

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.6HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
3.1CNADECLARED8.6HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA MinecAnton209 NovumOS affected < 0.25-beta.1 Not specified

References

ReferenceSourceLinkTags
github.com/MinecAnton209/NovumOS/security/advisories/GHSA-rq9v-wxp3-ffrr [email protected] github.com
github.com/MinecAnton209/NovumOS/tree/v0.25-beta.1 [email protected] github.com
github.com/MinecAnton209/NovumOS/commit/ca3e7a6b4bcdcac23413d39ecf863b94... [email protected] github.com
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