CVE-2026-5397

Estado: Pendiente de análisisAlta (7.8)—

It has been identified that a vulnerability (CWE-427) exists in the UPS (Uninterruptible Power Supply) management application, whereby improper permissions on the installation directory allow a malicious actor to place a DLL that is then executed with administrator privileges.

If a malicious DLL is placed in the installation directory of this product, there is a possibility that the malicious DLL may be executed by exploiting the product’s behavior of loading missing DLLs from the same directory as the executable during service startup.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Puntuación base: 7.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.14%
Percentil entre todas las CVEs puntuadas: 3
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation95 %
Impacto principalT1574.007 Path Interception by PATH Environment Variablestealth · execution90 %
Impacto secundarioT1059 Command and Scripting Interpreterexecution85 %

AV:L, PR:L sin UI permite escalada local. CWE-427 + DLL en directorio = DLL Hijacking (T1574.007). Ejecución con privilegios de administrador tras startup del servicio (T1059).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Execution Prevention Audit Threat Intelligence Program Restrict Web-Based Content Restrict File and Directory Permissions Privileged Account Management

CWE

CWE-427

Referencias

JSON original (NVD)

Mostrar

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  "id": "CVE-2026-5397",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-5397",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-15T13:46:38.260570Z"
        }
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    "cvssMetricV31": [
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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        "impactScore": 6,
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  "affected": [
    {
      "source": "bba440f9-ef23-4224-aa62-7ac0935d18d1",
      "affectedData": [
        {
          "vendor": "OMRON SOCIAL SOLUTIONS CO., Ltd.",
          "product": "PowerAttendant Standard Edition",
          "versions": [
            {
              "status": "affected",
              "version": "2.1.2 or lower",
              "versionType": "custom"
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          "platforms": [
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  "published": "2026-04-15T05:16:45.740",
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      "url": "https://www.omron.com/global/en/inquiry/data/OMSR-2026-001_en.pdf",
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    {
      "lang": "en",
      "value": "It has been identified that a vulnerability (CWE-427) exists in the UPS (Uninterruptible Power Supply) management application, whereby improper permissions on the installation directory allow a malicious actor to place a DLL that is then executed with administrator privileges.\n\nIf a malicious DLL is placed in the installation directory of this product, there is a possibility that the malicious DLL may be executed by exploiting the product’s behavior of loading missing DLLs from the same directory as the executable during service startup."
    }
  ],
  "lastModified": "2026-06-17T10:58:57.633",
  "sourceIdentifier": "bba440f9-ef23-4224-aa62-7ac0935d18d1"
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