CVE-2026-40572— NovumOS has Arbitrary Memory Mapping via Syscall 15 (MemoryMapRange)
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I. Basic Information for CVE-2026-40572
Vulnerability Information
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Vulnerability Title
NovumOS has Arbitrary Memory Mapping via Syscall 15 (MemoryMapRange)
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
特权管理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
NovumOS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NovumOS是MinecAnton209个人开发者的一个32位保护模式操作系统。 NovumOS 0.24之前版本存在安全漏洞，该漏洞源于系统调用15允许Ring 3用户模式进程映射任意虚拟地址范围到其地址空间，且未验证禁止区域，可能导致本地攻击者修改内核中断处理程序，进而实现权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| MinecAnton209 | NovumOS | < 0.24 | - |
II. Public POCs for CVE-2026-40572
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
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V. Comments for CVE-2026-40572
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