CVE-2020-11766
sendfax.php in iFAX AvantFAX before 3.3.6 and HylaFAX Enterprise Web Interface before 0.2.5...
sendfax.php in iFAX AvantFAX before 3.3.6 and HylaFAX Enterprise Web Interface before 0.2.5 allows authenticated Command Injection.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
sendfax.php in iFAX AvantFAX before 3.3.6 and HylaFAX Enterprise Web Interface before 0.2.5 allows authenticated Command Injection.
- Record
CVE-2020-11766- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-78
- Updated
- 2026-11-02
CVE List No score
sendfax.php in iFAX AvantFAX before 3.3.6 and HylaFAX Enterprise Web Interface before 0.2.5 allows authenticated Command Injection.
- Record
CVE-2020-11766- Updated
- 2026-11-02
EUVDEUVD-2020-4108 No score
sendfax.php in iFAX AvantFAX before 3.3.6 and HylaFAX Enterprise Web Interface before 0.2.5 allows authenticated Command Injection.
- Record
EUVD-2020-4108- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-43x3-5v8m-8xf2 No score
sendfax.php in iFAX AvantFAX before 3.3.6 and HylaFAX Enterprise Web Interface before 0.2.5...
sendfax.php in iFAX AvantFAX before 3.3.6 and HylaFAX Enterprise Web Interface before 0.2.5 allows authenticated Command Injection.
- Record
GHSA-43x3-5v8m-8xf2- Weakness
- CWE-74
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-11766 is a high vulnerability (CVSS 8.8) in Avantfax, published May 19, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.85%, the 79th percentile. No source names a fixed version.