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CVE-2026-77804

🗓️ 05 Oct 2026 12:40:26Reported by ProgressSoftwareType 
cve
 cve
🔗 web.nvd.nist.gov👁 5 Views

TOCTOU race condition in Fiddler Classic for Windows allows installation of a root cert.

Related
Detection
Affected
Refs
Vulners
Node
progressfiddlerRange1.0.0–6.0.20262.10021classic
[
  {
    "vendor": "Progress Software",
    "product": "Progress® Telerik® Fiddler® Classic",
    "platforms": [
      "Windows"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "1.0.0",
        "lessThan": "6.0.20262.10021",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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05 Oct 2026 13:16Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.16.6
5