CVE-2026-40572

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Source
https://cve.org/CVERecord?id=CVE-2026-40572
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40572.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-40572
Aliases
  • GHSA-rg7m-6vh7-f4v2
Published
2026-04-18T00:16:02Z
Modified
2026-08-12T03:51:16Z
Severity
  • 9.0 (Critical) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N CVSS Calculator
Summary
NovumOS has Arbitrary Memory Mapping via Syscall 15 (MemoryMapRange)
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-269"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40572.json"
}
References

Affected packages

Git / github.com/minecanton209/novumos

Affected ranges

Type
GIT
Repo
https://github.com/minecanton209/novumos
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
2fd365cd7c483ddf552de0ce81906eb05bb92bea
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.24"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v0.*
v0.20
v0.20.1
v0.21
v0.23
v0.23-beta.2
v0.23-beta.3
v0.23-beta.4
v0.23-beta.5
v0.23-beta.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40572.json"