Shenzhen Haichangxing Technology Co., Ltd HCX H822 4G LTE Router M7628NNxISPxUIv2_v1.0.1557.15.35_P0 is vulnerable to Incorrect Access Cont…

published 2024-09-10 2 y ago modified 2026-07-05 4 mo ago also EUVD-2024-41065

cvss: 8.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits: 0; none known

Shenzhen Haichangxing Technology Co., Ltd HCX H822 4G LTE Router M7628NNxISPxUIv2_v1.0.1557.15.35_P0 is vulnerable to Incorrect Access Control. Unauthenticated factory mode reset and command injection leads to information exposure and root shell access.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-09-10)

Exploit prediction

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	8.0	CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	8.0	CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

shenzhen_haichangxing_technology hcx_h822_firmware

Classification

Weakness

CWE-863 Incorrect Authorization

References

medium.com /@sengkyaut/unauthenticated-factory-mode-reset-and-at-command-injection-in-jboneos-or-jbonecloud-firmware-1dec

Sources

CVE List CVE-2024-44667
NVD CVE-2024-44667

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