CVE-2026-77804

Published 5 October 2026 · tracked since 5 October 2026

Description

In Progress® Telerik® Fiddler® Classic for Windows, versions prior to v6.0.20262.10021, a time-of-check time-of-use (TOCTOU) race condition exists in the installation of the HTTPS interception root certificate into the Local Computer certificate store. Fiddler writes the certificate to a temporary f

References

• NVD — National Vulnerability Database
• CVE.org record (MITRE)
• CISA Known Exploited Vulnerabilities catalog

Latest tracked vulnerabilities

• CVE-2026-102779
• CVE-2026-102777
• CVE-2026-102282 HIGH 7.1
• CVE-2026-88396
• CVE-2026-88393
• CVE-2026-105329 MEDIUM 6.3
• CVE-2026-105397 MEDIUM 5.4
• CVE-2026-104890 HIGH 7.2
• CVE-2026-102426
• CVE-2026-102428

→ Open the live CVE board · all tools