CVE-2026-40572

See a problem?
Please try reporting it to the source first.

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

2026-10-28T02:30:51Z

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

Fixed

2fd365cd7c483ddf552de0ce81906eb05bb92bea

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "0.24"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "original_tag": "v0.24",
            "range": [
                {
                    "fixed": "2fd365cd7c483ddf552de0ce81906eb05bb92bea"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

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"