SB vulnerability in Telerik Fiddler

Description

Multiple vulnerabilities were found in Telerik Fiddler. Malicious users can exploit these vulnerabilities to bypass security restrictions, gain privileges.

Below is a complete list of vulnerabilities:

1. Security vulnerability can be exploited to bypass security restrictions.
2. An elevation of privilege vulnerability can be exploited remotely to gain privileges.

Original advisories

• Fiddler v6.0.20262

Exploitation

Related products

• Fiddler

CVE list

• CVE-2026-77802
  high
• CVE-2026-77803
  warning
• CVE-2026-77804
  high
• CVE-2026-77805
  critical

Read more

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