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2 vulnerabilities found for MQAP-7628 by MoreQuick

CVE-2026-74232 (GCVE-0-2026-74232)

Vulnerability from nvd – Published: 2026-08-27 10:39 – Updated: 2026-08-27 14:49

Title

Zbtlink MQWrt yunmgrd Cloud C2 Implant

Summary

Zbtlink L3_V2_8 firmware 3.0.0.4.528, Zbtlink WE826-T2 firmware 19.1101, Zbtlink ZBT-7628 firmware 1.0.0.2.007, Zbtlink ZBT-ZBT7621 firmware 1.0.0.3.001, MoreQuick MQAC-7620, MQAC-7620A, MQAP-7620, MQAP-7620A, and MQAP-7628 firmware 1.0.0.2.000, AP522 firmware 1.0.0.2.014, AP7628 and HC5661A firmware 3.0.0.4.380, APG721B firmware 19.0809, HK300 firmware 1.0.0.2.032, and MAP-N10 firmware 1.0.0.2.044 ship a backdoor command-and-control implant (yunmgrd) reachable over an unauthenticated cleartext UDP channel to a hardcoded C2 server. A remote unauthenticated attacker on the network path can hijack the channel and execute arbitrary commands as root. The attacker can also modify DNS entries, exfiltrate PPPoE credentials, and open reverse SSH tunnels.

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

9.8 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-27 14:48 UTC

CWE

CWE-506 - Embedded Malicious Code
CWE-300 - Channel Accessible by Non-Endpoint

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
http://vulncheck.com/blog/zbt-darklantern-speakingstone	technical-descriptionexploit
https://www.vulncheck.com/advisories/zbtlink-mqwr…	third-party-advisory

Impacted products

15 products

Vendor	Product	Version
Zbtlink	L3_V2_8	Affected: 3.0.0.4.528 (custom)
Zbtlink	WE826-T2	Affected: 19.1101 (custom)
Zbtlink	ZBT-7628	Affected: 1.0.0.2.007 (custom)
Zbtlink	ZBT-ZBT7621	Affected: 1.0.0.3.001 (custom)
MoreQuick	MQAC-7620	Affected: 1.0.0.2.000 (custom)
MoreQuick	MQAC-7620A	Affected: 1.0.0.2.000 (custom)
MoreQuick	MQAP-7620	Affected: 1.0.0.2.000 (custom)
MoreQuick	MQAP-7620A	Affected: 1.0.0.2.000 (custom)
MoreQuick	MQAP-7628	Affected: 1.0.0.2.000 (custom)
Unknown	AP522	Affected: 1.0.0.2.014 (custom)
Unknown	AP7628	Affected: 3.0.0.4.380 (custom)
Unknown	APG721B	Affected: 19.0809 (custom)
Unknown	HC5661A	Affected: 3.0.0.4.380 (custom)
Unknown	HK300	Affected: 1.0.0.2.032 (custom)
Unknown	MAP-N10	Affected: 1.0.0.2.044 (custom)

Date Public

2026-08-27 00:00

Credits

Jacob Baines of VulnCheck

Show details on NVD website

JSON

To clipboard

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