GHSA-WF7J-R93F-5CVM高危未审查

无摘要

OSV 1.4.0 · unreviewed · 修改于 2026-09-01 11:31

发布时间

2026-09-01 11:31

GitHub 审查时间

—

NVD 发布时间

2026-09-01 09:16

源文件

advisories/unreviewed/2026/09/GHSA-wf7j-r93f-5cvm/GHSA-wf7j-r93f-5cvm.json

公告说明

A vulnerability in the Backblaze Client allows a local user to make the system not bootable by creating a link from Backblaze's folder to Windows OS system files during a backup. Successful exploitation requires an administrator-level system change that results in the absence of specific Windows OS security controls. This vulnerability is due to improper link resolution.

受影响的软件包

该公告没有提供结构化的受影响软件包信息。

参考链接

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-19820

标识信息

别名 / CVE

CVE-2026-19820

CWE

CWE-59

软件生态

无

扩展资料

暂无扩展资料。

CVSS 评分

CVSS_V4

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:L/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

原始 OSV JSON

{
  "id": "GHSA-wf7j-r93f-5cvm",
  "aliases": [
    "CVE-2026-19820"
  ],
  "details": "A vulnerability in the Backblaze Client allows a local user to make the system not bootable by creating a link from Backblaze's folder to Windows OS system files during a backup. Successful exploitation requires an administrator-level system change that results in the absence of specific Windows OS security controls. This vulnerability is due to improper link resolution.",
  "affected": [],
  "modified": "2026-09-01T03:31:03Z",
  "severity": [
    {
      "type": "CVSS_V4",
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:L/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"
    }
  ],
  "published": "2026-09-01T03:31:03Z",
  "references": [
    {
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19820",
      "type": "ADVISORY"
    },
    {
      "url": "https://www.backblaze.com/computer-backup/docs/backup-client-release-notes-windows",
      "type": "WEB"
    },
    {
      "url": "https://www.backblaze.com/status/update",
      "type": "WEB"
    }
  ],
  "schema_version": "1.4.0",
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "severity": "HIGH",
    "github_reviewed": false,
    "nvd_published_at": "2026-09-01T01:16:33Z",
    "github_reviewed_at": null
  }
}