CVE-2026-40572: MinecAnton209 NovumOS · Improper Privilege Management
Affects MinecAnton209 NovumOSSource CVE Database V5
Not known to be exploited · CVSS 9.0 Critical : upgrade to 0.24 as a priority.
Data as of 30 Oct 2026, 06:59 UTC
Contested
Critical score, yet low EPSS after six months- EPSS
- 0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 0.24
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 18 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade NovumOS and minecanton209/NovumOS to 0.24.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| MinecAnton209NovumOS | Affected
| Fixed in
|
GitHubminecanton209/NovumOSpkg:github/minecanton209/NovumOSOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade NovumOS to version 0.24 or later, where this vulnerability is fixed. Since the vendor advisory confirms the issue is resolved in 0.24, applying this official fix is the recommended remediation. Patch status is confirmed by the vendor advisory stating the fix in version 0.24.
Description
NovumOS is a custom 32-bit operating system written in Zig and x86 Assembly. In versions prior to 0.24, Syscall 15 (MemoryMapRange) allows Ring 3 user-mode processes to map arbitrary virtual address ranges into their address space without validating against forbidden regions, including critical kernel structures such as the IDT, GDT, TSS, and page tables. A local attacker can exploit this to modify kernel interrupt handlers, resulting in privilege escalation from user mode to kernel context. This issue has been fixed in version 0.24.