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CVE-2026-45384

Estado: AplazadaMedia (6.1)—

bit7z is a cross-platform C++ static library that allows the compression/extraction of archive files. Prior to version 4.0.12, there is an arbitrary file overwrite vulnerability via symlink attack on predictable temp files during archive update. This issue has been patched in version 4.0.12.

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).

Tecnologías afectadas (1)

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

Rikyoz — Bit7zAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-45384",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-45384",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-11T13:38:29.357196Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.1,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4.2,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "rikyoz",
          "product": "bit7z",
          "versions": [
            {
              "status": "affected",
              "version": "< 4.0.12"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-06-10T22:16:58.377",
  "references": [
    {
      "url": "https://github.com/rikyoz/bit7z/releases/tag/v4.0.12",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-59"
        },
        {
          "lang": "en",
          "value": "CWE-377"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "bit7z is a cross-platform C++ static library that allows the compression/extraction of archive files. Prior to version 4.0.12, there is an arbitrary file overwrite vulnerability via symlink attack on predictable temp files during archive update. This issue has been patched in version 4.0.12."
    },
    {
      "lang": "es",
      "value": "bit7z es una biblioteca estática de C++ multiplataforma que permite la compresión/extracción de archivos comprimidos. Antes de la versión 4.0.12, existe una vulnerabilidad de sobrescritura arbitraria de archivos mediante un ataque de enlace simbólico en archivos temporales predecibles durante la actualización del archivo. Este problema ha sido parcheado en la versión 4.0.12."
    }
  ],
  "lastModified": "2026-07-23T09:10:00.113",
  "sourceIdentifier": "security-advisories@github.com"
}