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CVE-2026-3257

Estado: AnalizadaCrítica (9.8)—

UnQLite versions through 0.06 for Perl uses a potentially insecure version of the UnQLite library.

UnQLite for Perl embeds the UnQLite library. Version 0.06 and earlier of the Perl module uses a version of the library from 2014 that may be vulnerable to a heap-based overflow.

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.

Vector CVSS de red sin autenticación (AV:N/PR:N/UI:N) indica explotación remota directa (T1190). El desbordamiento de heap embebido en la librería UnQLite permite ejecución arbitraria de código (T1059) y potencial escalada de privilegios (T1068).

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

Privileged Account ManagementExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate SoftwareVulnerability Scanning

Tecnologías afectadas (1)

Tokuhirom — Unqlite

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-3257",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-3257",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-05T16:33:50.730722Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "repo": "https://github.com/tokuhirom/UnQLite",
          "vendor": "TOKUHIROM",
          "product": "UnQLite",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "0.06"
            }
          ],
          "packageName": "UnQLite",
          "programFiles": [
            "unqlite/unqlite.c"
          ],
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-03-05T02:16:52.150",
  "references": [
    {
      "url": "https://metacpan.org/release/TOKUHIROM/UnQLite-0.07/source/Changes",
      "tags": [
        "Release Notes"
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
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    {
      "url": "https://unqlite.symisc.net/",
      "tags": [
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      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-3791",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "UnQLite versions through 0.06 for Perl uses a potentially insecure version of the UnQLite library.\n\nUnQLite for Perl embeds the UnQLite library.  Version 0.06 and earlier of the Perl module uses a version of the library from 2014 that may be vulnerable to a heap-based overflow."
    },
    {
      "lang": "es",
      "value": "Las versiones de UnQLite hasta la 0.06 para Perl utilizan una versión potencialmente insegura de la biblioteca UnQLite.\n\nUnQLite para Perl incrusta la biblioteca UnQLite. La versión 0.06 y anteriores del módulo Perl utilizan una versión de la biblioteca de 2014 que puede ser vulnerable a un desbordamiento basado en el montón."
    }
  ],
  "lastModified": "2026-06-17T10:43:17.317",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:tokuhirom:unqlite:*:*:*:*:*:perl:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E9DB99D4-E76E-44B5-B1C6-69D1EE50F8B2",
              "versionEndExcluding": "0.07"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
}