Progress Telerik Fiddler Everywhere · Improper Neutralization of Input
Source GCVE Database
Not known to be exploited · CVSS 7.3 High : upgrade to 8.3.0 soon.
Data as of 6 Nov 2026, 19:18 UTC
Thin evidence
One scorer or none| CNA (ProgressSoftware) | CVSS 3.1 | 7.3 |
|---|
- Patch
- Available – fixed in 8.3.0
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:LExploitation evidence
Disclosed: evidence found.
CVE published 6 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.
What to do
Upgrade Progress® Telerik® Fiddler® Everywhere to 8.3.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Progress SoftwareProgress® Telerik® Fiddler® Everywhere | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, users should avoid opening SAZ files from untrusted sources and exercise caution when handling session files.
Description
Progress Telerik Fiddler Everywhere versions 8.3.0 and earlier contain an input neutralization vulnerability in the sessions grid. This flaw allows an attacker to execute backend inter-process communication (IPC) commands by tricking a user into opening a maliciously crafted SAZ file. The vulnerability requires user interaction and local access to the application. It has a high severity rating with a CVSS score of 7.3.