FKIE_CVE-2026-45384

Vulnerability from fkie_nvd - Published: 2026-06-10 22:16 - Updated: 2026-07-23 09:10
Severity
6.1 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Summary
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.
References
security-advisories@github.comhttps://github.com/rikyoz/bit7z/releases/tag/v4.0.12
security-advisories@github.comhttps://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "bit7z",
          "vendor": "rikyoz",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4.0.12"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "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 est\u00e1tica de C++ multiplataforma que permite la compresi\u00f3n/extracci\u00f3n de archivos comprimidos. Antes de la versi\u00f3n 4.0.12, existe una vulnerabilidad de sobrescritura arbitraria de archivos mediante un ataque de enlace simb\u00f3lico en archivos temporales predecibles durante la actualizaci\u00f3n del archivo. Este problema ha sido parcheado en la versi\u00f3n 4.0.12."
    }
  ],
  "id": "CVE-2026-45384",
  "lastModified": "2026-07-23T09:10:00.113",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 4.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-45384",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-11T13:38:29.357196Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-10T22:16:58.377",
  "references": [
    {
      "source": "security-advisories@github.com",
      "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": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/rikyoz/bit7z/security/advisories/GHSA-wjch-42rm-q53h"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-59"
        },
        {
          "lang": "en",
          "value": "CWE-377"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.