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CVE-2026-74233

Zbtlink MQWrt infosrvd Command Injection PUBLISHED

Description (CNA)

Zbtlink WE1326, WE357, WE5926, WE5926-WD, WE826-Q, WE826-T2, WE826-WD, WG108, and WG3526 firmware 19.1101, Zbtlink WE2426-C firmware 19.1112, Zbtlink WE5926-EC_QP firmware 20.0516, Zbtlink WF3526-P firmware 19.051, CTN720-W1, LF-1541, and MT7620N firmware 19.1101, and WRC1 firmware 20.0622 contain an unauthenticated command injection in the infosrvd service (UDP/9992). A remote unauthenticated attacker can send a crafted UDP packet to execute arbitrary commands as root. The service's authentication uses a hardcoded salt and an all-zero wildcard MAC bypass, rendering it ineffective.

Affected (CNA)

Vendor / productVersions
Zbtlink / WE1326affected 19.1101
Zbtlink / WE2426-Caffected 19.1112
Zbtlink / WE357affected 19.1101
Zbtlink / WE5926affected 19.1101
Zbtlink / WE5926-EC_QPaffected 20.0516
Zbtlink / WE5926-WDaffected 19.1101
Zbtlink / WE826-Qaffected 19.1101
Zbtlink / WE826-T2affected 19.1101
Zbtlink / WE826-WDaffected 19.1101
Zbtlink / WF3526-Paffected 19.051
Zbtlink / WG108affected 19.1101
Zbtlink / WG3526affected 19.1101
Unknown / CTN720-W1affected 19.1101
Unknown / LF-1541affected 19.1101
Unknown / MT7620Naffected 19.1101
Unknown / WRC1affected 20.0622

CWE

CWE-321, CWE-78

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.