Airangel HSMX Gateway devices through 5.2.04 allow CSRF.

published 2021-11-10 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-27694

cvss: 6.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits: 0; none known

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

etizazmohsin.com http://etizazmohsin.com/hsmx.html#csrf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness

CWE-352 Cross-Site Request Forgery

References

etizazmohsin.com /hsmx.html#csrf
exploit, third-party-advisory
airangel.com /hsmx-gateway/
product

Sources

CVE List CVE-2021-40518
NVD CVE-2021-40518

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary