CVE-2026-40572

{
  "id": "CVE-2026-40572",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-18T01:16:19.663",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "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."
    },
    {
      "lang": "es",
      "value": "NovumOS es un sistema operativo personalizado de 32 bits escrito en Zig y ensamblador x86. En versiones anteriores a la 0.24, la llamada al sistema 15 (MemoryMapRange) permite a los procesos en modo usuario de Anillo 3 mapear rangos de direcciones virtuales arbitrarios en su espacio de direcciones sin validar contra regiones prohibidas, incluyendo estructuras críticas del kernel como la IDT, GDT, TSS y las tablas de páginas. Un atacante local puede explotar esto para modificar los manejadores de interrupción del kernel, lo que resulta en una escalada de privilegios de modo usuario a contexto de kernel. Este problema ha sido solucionado en la versión 0.24."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "MinecAnton209",
          "product": "NovumOS",
          "versions": [
            {
              "version": "< 0.24",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N",
          "baseScore": 9.0,
          "baseSeverity": "CRITICAL",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 5.8
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-20T14:45:37.202840Z",
          "id": "CVE-2026-40572",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:minecanton209:novumos:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "0.24",
              "matchCriteriaId": "A40C9D50-FA65-41F9-859B-D8C31D3E55AC"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/MinecAnton209/NovumOS/releases/tag/v0.24",
      "source": "[email protected]",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://github.com/MinecAnton209/NovumOS/security/advisories/GHSA-rg7m-6vh7-f4v2",
      "source": "[email protected]",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ]
    }
  ]
}