Vulnerability-Lookup

VAR-201402-0700

Vulnerability from variot - Updated: 2025-11-21 23:16

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. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-06 UTC. Linksys E-series routers are popular router devices. Multiple Linksys E-series routers have multiple security vulnerabilities that allow malicious users to bypass some of the security restrictions: 1. 2. The device fails to properly restrict access to the console, allowing an attacker to access restricted functionality through the TCP port 8083

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CVE-2025-34037 (GCVE-0-2025-34037)

Vulnerability from cvelistv5 – Published: 2025-06-24 01:03 – Updated: 2025-11-22 01:31 X_Known Exploited Vulnerability

Title

Linksys Routers E/WAG/WAP/WES/WET/WRT-Series

Summary

Severity ?

10 (Critical)


                        
                          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

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

VulnCheck

References

URL

Tags

	https://isc.sans.edu/diary/17633	technical-description
	https://www.exploit-db.com/exploits/31683	third-party-advisoryexploit
	https://vulncheck.com/advisories/linksys-routers-…	third-party-advisory

Impacted products

Vendor

Product

Version

Linksys

E4200

Affected: 0 , < 1.0.06 (semver)

Linksys	E3200	Affected: 0 , < 1.0.05 (semver)
Linksys	E3000	Affected: 0 , < 1.0.06 (semver)
Linksys	E2500 v1/v2	Affected: 0 , < 2.0.00 (semver)
Linksys	E2100L v1	Affected: 0 , ≤ 1.0.05 (semver)
Linksys	E2000	Affected: 0 (semver)
Linksys	E1550	Affected: 0 , ≤ 1.0.03 (semver)
Linksys	E1500 v1	Affected: 0 , < 1.0.06 (semver)
Linksys	E1200 v1	Affected: 0 , ≤ 1.0.04 (semver)
Linksys	E1000 v1	Affected: 0 , < 2.1.03 (semver)
Linksys	E900 v1	Affected: 0 , < 1.0.04 (semver)

Credits

Johannes Ullrich of SANS Internet Storm Center

Show details on NVD website

JSON

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            "exploitMaturity": "NOT_DEFINED",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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        "dateUpdated": "2025-11-22T01:31:26.488Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
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          "url": "https://www.exploit-db.com/exploits/31683"
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          "url": "https://vulncheck.com/advisories/linksys-routers-command-injection"
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      "source": {
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      "tags": [
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      "title": "Linksys Routers E/WAG/WAP/WES/WET/WRT-Series",
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    "datePublished": "2025-06-24T01:03:27.693Z",
    "dateReserved": "2025-04-15T19:15:22.546Z",
    "dateUpdated": "2025-11-22T01:31:26.488Z",
    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

VAR-201402-0700

CVE-2025-34037 (GCVE-0-2025-34037)

Tags

Sightings

Nomenclature