CVE-2011-4499
7.5 · HIGHOverview
CVE-2011-4499 is a high-severity vulnerability affecting cisco linksys_wrt54g_router_firmware. It was published on November 22, 2011 and has a CVSS 2.0 base score of 7.5 (HIGH).
This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
The UPnP IGD implementation in the Broadcom UPnP stack on the Cisco Linksys WRT54G with firmware before 4.30.5, WRT54GS v1 through v3 with firmware before 4.71.1, and WRT54GS v4 with firmware before 1.06.1 allows remote attackers to establish arbitrary port mappings by sending a UPnP AddPortMapping action in a SOAP request to the WAN interface, related to an "external forwarding" vulnerability.
Remediation
Check the references section for vendor advisories and patches from cisco. Update linksys_wrt54g_router_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| cisco | linksys_wrt54g_router_firmware | 0 | Affected |
| cisco | linksys_wrt54gs_router_firmware | 0 | Affected |
Frequently Asked Questions
What is CVE-2011-4499?
CVE-2011-4499 is a high-severity vulnerability affecting cisco linksys_wrt54g_router_firmware. It was published on November 22, 2011 and has a CVSS 2.0 base score of 7.5 (HIGH).
How severe is CVE-2011-4499?
This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2011-4499?
Check the references section for vendor advisories and patches from cisco. Update linksys_wrt54g_router_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2011-4499?
CyberStrike's AI-powered security agents can automatically detect CVE-2011-4499 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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