« Volver al listado

CVE-2026-25701

Estado: AplazadaAlta (7)—

This issue affects sdbootutil: from ? before 5880246d3a02642dc68f5c8cb474bf63cdb56bca.

Detalles técnicos trazas, registros y código del informe original
An Insecure Temporary File vulnerability in openSUSE sdbootutil allows local users to pre-create a directory to achieve various effects like:
  *  gain access to possible private information found in /var/lib/pcrlock.d
  *  manipulate the data backed up in /tmp/pcrlock.d.bak, therefore violating the integrity of the data should it be restored.
  *   overwrite protected system files with data from /var/lib/pcrlock.d by placing symlinks to existing files in the directory tree in /tmp/pcrlock.d.bak.

CVSS

Probabilidad de explotación (EPSS)

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.

Vulnerabilidad de archivo temporal inseguro (CWE-377) que permite a usuarios locales con privilegios (PR:L) crear directorios maliciosos para leer datos privados, manipular backups y sobrescribir archivos del sistema mediante symlinks, escalando privilegios.

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

Restrict File and Directory PermissionsThreat Intelligence ProgramPrivileged Account ManagementRemote Data StorageExecution PreventionEncrypt Sensitive Information

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Opensuse — SdbootutilAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-25701",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-25701",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-02-25T20:49:57.200219Z"
        }
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "meissner@suse.de",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 7,
          "Automatable": "NOT_DEFINED",
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "LOW",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "meissner@suse.de",
      "affectedData": [
        {
          "vendor": "openSUSE",
          "product": "sdbootutil",
          "versions": [
            {
              "status": "affected",
              "version": "?",
              "lessThan": "5880246d3a02642dc68f5c8cb474bf63cdb56bca",
              "versionType": "git"
            }
          ],
          "packageName": "sdbootutil",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-02-25T12:16:17.763",
  "references": [
    {
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=1258241",
      "source": "meissner@suse.de"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "meissner@suse.de",
      "description": [
        {
          "lang": "en",
          "value": "CWE-377"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An Insecure Temporary File vulnerability in openSUSE sdbootutil allows local users to pre-create a directory to achieve various effects like:\n  *  gain access to possible private information found in /var/lib/pcrlock.d\n  *  manipulate the data backed up in /tmp/pcrlock.d.bak, therefore violating the integrity of the data should it be restored.\n  *   overwrite protected system files with data from /var/lib/pcrlock.d by placing symlinks to existing files in the directory tree in /tmp/pcrlock.d.bak.\n\n\nThis issue affects sdbootutil: from ? before 5880246d3a02642dc68f5c8cb474bf63cdb56bca."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de archivo temporal inseguro en openSUSE sdbootutil permite a los usuarios locales pre-crear un directorio para lograr varios efectos como:\n  *  obtener acceso a posible información privada encontrada en /var/lib/pcrlock.d\n  *  manipular los datos respaldados en /tmp/pcrlock.d.bak, violando así la integridad de los datos en caso de que se restauren.\n  *  sobrescribir archivos de sistema protegidos con datos de /var/lib/pcrlock.d colocando enlaces simbólicos a archivos existentes en el árbol de directorios en /tmp/pcrlock.d.bak.\n\nEste problema afecta a sdbootutil: desde ? antes de 5880246d3a02642dc68f5c8cb474bf63cdb56bca."
    }
  ],
  "lastModified": "2026-06-17T10:25:04.627",
  "sourceIdentifier": "meissner@suse.de"
}