{"id":"CVE-2026-40573","state":"PUBLISHED","title":"NovumOS: Nova Interpreter Privilege Escalation","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.","publishedAt":"2026-10-30T20:31:13.209Z","updatedAt":"2026-10-30T20:31:13.209Z","severity":{"score":8.6,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["MinecAnton209 NovumOS"],"affected":[{"vendor":"MinecAnton209","product":"NovumOS","versions":[{"version":"< 0.25-beta.1","status":"affected"}]}],"references":["https://github.com/MinecAnton209/NovumOS/security/advisories/GHSA-rq9v-wxp3-ffrr","https://github.com/MinecAnton209/NovumOS/commit/ca3e7a6b4bcdcac23413d39ecf863b94e6a3a207","https://github.com/MinecAnton209/NovumOS/tree/v0.25-beta.1"],"weaknesses":["CWE-250"],"ingestedAt":"2026-10-30T20:40:06.414Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/40xxx/CVE-2026-40573.json","commit":"cb8deb8a54771116d7fe7a1d93b44eaca9c11863","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40573","state":"PUBLISHED","datePublished":"2026-10-30T20:31:13.209Z","dateUpdated":"2026-10-30T20:31:13.209Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-14T13:24:29.474Z"},"containers":{"cna":{"title":"NovumOS: Nova Interpreter Privilege Escalation","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"MinecAnton209","product":"NovumOS","versions":[{"version":"< 0.25-beta.1","status":"affected"}]}],"references":[{"url":"https://github.com/MinecAnton209/NovumOS/security/advisories/GHSA-rq9v-wxp3-ffrr","name":"https://github.com/MinecAnton209/NovumOS/security/advisories/GHSA-rq9v-wxp3-ffrr","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/MinecAnton209/NovumOS/commit/ca3e7a6b4bcdcac23413d39ecf863b94e6a3a207","name":"https://github.com/MinecAnton209/NovumOS/commit/ca3e7a6b4bcdcac23413d39ecf863b94e6a3a207","tags":["x_refsource_MISC"]},{"url":"https://github.com/MinecAnton209/NovumOS/tree/v0.25-beta.1","name":"https://github.com/MinecAnton209/NovumOS/tree/v0.25-beta.1","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":8.6,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-250","lang":"en","description":"CWE-250: Execution with Unnecessary Privileges","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-30T20:31:13.209Z"},"source":{"advisory":"GHSA-rq9v-wxp3-ffrr","discovery":"UNKNOWN"}}}}}