🔐 CVE Alert

CVE-2026-86157

MEDIUM 5.6

Exposure of Privileged IPC Functionality in Progress Telerik Fiddler Everywhere

CVSS Score
5.6
EPSS Score
0.0%
EPSS Percentile
0th

Exposure of privileged IPC functionality in Progress Telerik Fiddler Everywhere before version 8.2.0 allows a local, low-privileged attacker who can modify application launch parameters and persuade a user to start the application to replace the application UI or settings with attacker-controlled content. Successful exploitation could result in disclosure of OAuth authentication tokens, execution of locally accessible programs, or unauthorized modification of application-generated configuration files.

CWE CWE-749
Vendor progress software
Product progress® telerik® fiddler® everywhere
Published Sep 29, 2026
Stay Ahead of the Next One

Get instant alerts for progress software progress® telerik® fiddler® everywhere

Be the first to know when new medium vulnerabilities affecting progress software progress® telerik® fiddler® everywhere are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None

Affected Versions

Progress Software / Progress® Telerik® Fiddler® Everywhere
1.0.0 < 8.2.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗
telerik.com: https://www.telerik.com/fiddler/fiddler-everywhere/documentation/knowledge-base/kb-security-exposed-dangerous-method-or-function-cve-2026-86157.

Credits

whizarre