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vuln-cve/data/2026/40xxx/CVE-2026-40572.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-40572",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-04-14T13:24:29.474Z",
"datePublished": "2026-04-18T00:16:02.590Z",
"dateUpdated": "2026-04-20T14:55:57.521Z"
},
"containers": {
"cna": {
"title": "NovumOS has Arbitrary Memory Mapping via Syscall 15 (MemoryMapRange)",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-269",
"lang": "en",
"description": "CWE-269: Improper Privilege Management",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 9,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/MinecAnton209/NovumOS/security/advisories/GHSA-rg7m-6vh7-f4v2",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/MinecAnton209/NovumOS/security/advisories/GHSA-rg7m-6vh7-f4v2"
},
{
"name": "https://github.com/MinecAnton209/NovumOS/releases/tag/v0.24",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/MinecAnton209/NovumOS/releases/tag/v0.24"
}
],
"affected": [
{
"vendor": "MinecAnton209",
"product": "NovumOS",
"versions": [
{
"version": "< 0.24",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-04-18T00:16:02.590Z"
},
"descriptions": [
{
"lang": "en",
"value": "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": {
"advisory": "GHSA-rg7m-6vh7-f4v2",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-04-20T14:45:37.202840Z",
"id": "CVE-2026-40572",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-04-20T14:55:57.521Z"
}
}
]
}
}