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CVE-2025-34037— Linksys Routers E/WAG/WAP/WES/WET/WRT-Series

Quick assessment

Affected
Linksys E4200
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linksys E-Series是美国Linksys公司的一款路由器。 Linksys E-Series存在安全漏洞，该漏洞源于tmUnblock.cgi和hndUnblock.cgi端点中ttcp_ip参数未清理导致OS命令注入攻击。

AI Predicted 9.8 Difficulty: Trivial EPSS 90.63% · P100

Public Exploits 1

Metasploit · 1 linksys_themoon_exec.rb [exploit]

Affected Version Matrix 11

VendorProduct Version RangeStatus
Linksys E1000 v1 < 2.1.03 affected
Linksys E1200 v1 ≤ 1.0.04 affected
Linksys E1500 v1 < 1.0.06 affected
Linksys E1550 ≤ 1.0.03 affected
Linksys E2000 affected
Linksys E2100L v1 ≤ 1.0.05 affected
Linksys E2500 v1/v2 < 2.0.00 affected
Linksys E3000 < 1.0.06 affected
Linksys E3200 < 1.0.05 affected
Linksys E4200 < 1.0.06 affected
Linksys E900 v1 < 1.0.04 affected
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I. Basic Information for CVE-2025-34037

Vulnerability Information
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Vulnerability Title
Linksys Routers E/WAG/WAP/WES/WET/WRT-Series
Source: CVE Program / CVE List V5
Vulnerability 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 was reported to be exploited in the wild by the "TheMoon" worm  in 2014 to deploy a MIPS ELF payload, enabling arbitrary code execution on the router. Additionally, 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. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-06 UTC.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Linksys E-Series 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linksys E-Series是美国Linksys公司的一款路由器。 Linksys E-Series存在安全漏洞，该漏洞源于tmUnblock.cgi和hndUnblock.cgi端点中ttcp_ip参数未清理导致OS命令注入攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Linksys E4200 0 ~ 1.0.06 -
Linksys E3200 0 ~ 1.0.05 -
Linksys E3000 0 ~ 1.0.06 -
Linksys E2500 v1/v2 0 ~ 2.0.00 -
Linksys E2100L v1 0 ~ 1.0.05 -
Linksys E2000 0 -
Linksys E1550 0 ~ 1.0.03 -
Linksys E1500 v1 0 ~ 1.0.06 -
Linksys E1200 v1 0 ~ 1.0.04 -
Linksys E1000 v1 0 ~ 2.1.03 -
Linksys E900 v1 0 ~ 1.0.04 -

II. Public POCs for CVE-2025-34037

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III. Intelligence Information for CVE-2025-34037

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IV. Related Vulnerabilities

Same vendor: Linksys
Same weakness: CWE-78

V. Comments for CVE-2025-34037

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