Product by Progress Software

    Progress® Telerik® Fiddler® Classic

    4 known vulnerabilities in Progress® Telerik® Fiddler® Classic (Progress Software), 0 of them actively exploited (CISA KEV).

    Key figures

    4

    Vulnerabilities

    0

    Actively exploited (KEV)

    0

    Used by ransomware

    0

    Critical

    Vulnerabilities

    Actively exploited vulnerabilities (CISA KEV) first, then by priority. Click a column header to re-sort the table.

    Vulnerabilities in Progress® Telerik® Fiddler® Classic (Progress Software)
    HighCVE-2026-77805

    Weak Executable Signature Verification Vulnerability in Progress® Telerik® Fiddler® Classic

    		7.9
    MediumCVE-2026-77804

    Progress Software Progress® Telerik® Fiddler® Classic: Time-of-check Time-of-use (TOCTOU) Race Condition

    		6.6
    MediumCVE-2026-77802

    HTTP Request Smuggling Vulnerability in Progress® Telerik® Fiddler® Classic

    		6.3
    LowCVE-2026-77803

    Front-end Desynchronization Vulnerability in Progress® Telerik® Fiddler® Classic

    		3.6

    All products by Progress Software