What’s Vulnerable › Vulnerabilities

CVE-2011-4500

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2011-11-22 · updated 2026-06-16
• Weakness: CWE-16

Description

The UPnP IGD implementation on the Cisco Linksys WRT54GX with firmware 2.00.05, when UPnP is enabled, configures the SOAP server to listen on the WAN port, which allows remote attackers to administer the firewall via SOAP requests.

Affected products

• Cisco Linksys Wrt54Gx Router Firmware: 2.00.05
• Linksys Wrt54Gx: 2.0

References

• http://www.kb.cert.org/vuls/id/357851
• http://www.upnp-hacks.org/devices.html
• http://www.kb.cert.org/vuls/id/357851
• http://www.upnp-hacks.org/devices.html

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