CVE-2011-4500
The UPnP IGD implementation on the Cisco Linksys WRT54GX with firmware 2.00.05, when UPnP is...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2011-4500- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-16
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2011-4500- Updated
- 2026-11-02
EUVDEUVD-2011-4426 No score
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.
- Record
EUVD-2011-4426- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-q2fp-xmhf-wjcx No score
The UPnP IGD implementation on the Cisco Linksys WRT54GX with firmware 2.00.05, when UPnP is...
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.
- Record
GHSA-q2fp-xmhf-wjcx- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2011-4500 is a high vulnerability (CVSS 7.5) in Linksys Wrt54gx, published November 22, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.31%, the 70th percentile. No source names a fixed version.