CVE-2021-40518

Name: CVE-2021-40518
Creator: NVD / NIST
Published: 2021-11-10T16:15:08.923+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2021-40518 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Airangel HSMX Gateway devices through 5.2.04 allow CSRF.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

Airangel HSMX Gateway devices through 5.2.04 allow CSRF.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS Probability

0.41%

32.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-352

Affected Software

Vendor	Product	Versions
Airangel	Hsmx-App-25 Firmware	<= 5.2.04
Airangel	Hsmx-App-100 Firmware	<= 5.2.04
Airangel	Hsmx-App-1000 Firmware	<= 5.2.04
Airangel	Hsmx-App-5000 Firmware	<= 5.2.04
Airangel	Hsmx-App-20000 Firmware	<= 5.2.04

References

http://etizazmohsin.com/hsmx.html#csrfExploit, Third Party Advisory
https://airangel.com/hsmx-gateway/Product
http://etizazmohsin.com/hsmx.html#csrfExploit, Third Party Advisory
https://airangel.com/hsmx-gateway/Product

Timeline

Published: Nov 10, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-40518?

Airangel HSMX Gateway devices through 5.2.04 allow CSRF.

How severe is CVE-2021-40518?

CVE-2021-40518 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2021-40518?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-40518?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST