An OS command injection vulnerability exists in various models of E-Series Linksys routers via the /tmUnblock.cgi and /hndUnblock.cgi endpoints over HTTP on port 8080. The CGI scripts improperly process user-supplied input passed to the ttcp_ip parameter without sanitization, allowing unauthenticated attackers to inject shell commands. This vulnerability is exploited in the wild by the "TheMoon" worm to deploy a MIPS ELF payload, enabling arbitrary code execution on the router. This vulnerability may affect other Linksys products to include, but not limited to, WAG/WAP/WES/WET/WRT-series router models and Wireless-N access points and routers.
History

Tue, 24 Jun 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 24 Jun 2025 04:45:00 +0000


Tue, 24 Jun 2025 03:15:00 +0000

Type Values Removed Values Added
Title Linksys E-Series Routers Command Injection Linksys Routers E/WAG/WAP/WES/WET/WRT-Series
References

Tue, 24 Jun 2025 01:15:00 +0000

Type Values Removed Values Added
Description An OS command injection vulnerability exists in various models of E-Series Linksys routers via the /tmUnblock.cgi and /hndUnblock.cgi endpoints over HTTP on port 8080. The CGI scripts improperly process user-supplied input passed to the ttcp_ip parameter without sanitization, allowing unauthenticated attackers to inject shell commands. This vulnerability is exploited in the wild by the "TheMoon" worm to deploy a MIPS ELF payload, enabling arbitrary code execution on the router. This vulnerability may affect other Linksys products to include, but not limited to, WAG/WAP/WES/WET/WRT-series router models and Wireless-N access points and routers.
Title Linksys E-Series Routers Command Injection
Weaknesses CWE-20
CWE-78
References
Metrics cvssV4_0

{'score': 10, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2025-06-24T01:03:27.693Z

Updated: 2025-06-24T15:54:33.863Z

Reserved: 2025-04-15T19:15:22.546Z

Link: CVE-2025-34037

cve-icon Vulnrichment

Updated: 2025-06-24T15:54:26.304Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-06-24T01:15:25.037

Modified: 2025-06-26T18:58:14.280

Link: CVE-2025-34037

cve-icon Redhat

No data.