CVE-2025-34037
Linksys Routers E/WAG/WAP/WES/WET/WRT-Series
Basic Information
- CVE State
- PUBLISHED
- Reserved Date
- April 15, 2025
- Published Date
- June 24, 2025
- Last Updated
- May 14, 2026
- Vendor
- Linksys
- Product
- E4200, E3200, E3000, E2500 v1/v2, E2100L v1, E2000, E1550, E1500 v1, E1200 v1, E1000 v1, E900 v1
- 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.
- Tags
- Score
- 89.27% (Percentile: 99.56%) as of 2026-05-31
- Exploitation
- poc
- Automatable
- Yes
- Technical Impact
- total
- Exploited in the Wild
- Yes (2026-06-01 10:34:16 UTC) Source
edge
CVSS Scores
CVSS v4.0
10.0 - CRITICAL
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
EPSS Score
SSVC Information
Exploit Status
References
Known Exploited Vulnerability Information
| Source | Added Date |
|---|---|
| CVE | 2026-06-01 10:34:09 UTC |
Timeline
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CVE ID Reserved
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CVE Published to Public
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Added to KEVIntel