What’s Vulnerable › Vulnerabilities

CVE-2020-11766

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-05-19 · updated 2026-06-17
• Weakness: CWE-78

Description

sendfax.php in iFAX AvantFAX before 3.3.6 and HylaFAX Enterprise Web Interface before 0.2.5 allows authenticated Command Injection.

Affected products

• Avantfax: from 3.3.0 before 3.3.6 — fixed in 3.3.6
• ifax HylaFAX: from 0.2.0 before 0.2.5 — fixed in 0.2.5

How to fix

Upgrade to a fixed version: Avantfax 3.3.6; ifax HylaFAX 0.2.5. Check the vendor advisory for mitigations.

References

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