CVE-2020-13661

HIGH EPSS 62.7%
Published Nov 5, 20205y ago · Modified Jun 17, 20261w ago
8.8 CVSS 3.1
High
Find Similar
Published Nov 5, 2020 5y ago
Last Modified Jun 17, 2026 1w ago

Description

Telerik Fiddler through 5.0.20202.18177 allows attackers to execute arbitrary programs via a hostname with a trailing space character, followed by --utility-and-browser --utility-cmd-prefix= and the pathname of a locally installed program. The victim must interactively choose the Open On Browser option. Fixed in version 5.0.20204.

CVSS Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
62.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Affected Products 1

VendorProductVersionRange
telerikfiddler* ≤5.0.20202.18177

References 3

  • nagenrauft-consulting.com https://www.nagenrauft-consulting.com/blog/
    Not Applicable
  • telerik.com https://www.telerik.com/support/whats-new/fiddler/release-history/fiddler-v5.0.20204
    Release NotesVendor Advisory
  • telerik.com https://www.telerik.com/support/whats-new/release-history
    Release NotesVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.