What’s Vulnerable › Vulnerabilities

CVE-2021-40521

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-11-10 · updated 2026-06-17

Description

Airangel HSMX Gateway devices through 5.2.04 allow Remote Code Execution.

Affected products

• Airangel Hsmx-App-1000 Firmware: through 5.2.04
• Airangel Hsmx-App-100 Firmware: through 5.2.04
• Airangel Hsmx-App-20000 Firmware: through 5.2.04
• Airangel Hsmx-App-25 Firmware: through 5.2.04
• Airangel Hsmx-App-5000 Firmware: through 5.2.04

References

• http://etizazmohsin.com/hsmx.html#rce
• https://airangel.com/hsmx-gateway/
• http://etizazmohsin.com/hsmx.html#rce
• https://airangel.com/hsmx-gateway/

Get alerted when CVE-2021-40521 or the next vulnerability affects your stack