CVE-2011-4501

32
FAUCET Score

CVE-2011-4501 is a critical vulnerability affecting the UPnP IGD implementation in various routers from Edimax, Canyon-Tech, Sitecom, and Sweex. It allows remote, unauthenticated attackers to establish arbitrary port mappings by sending a crafted SOAP request to the WAN interface. This vulnerability carries a CVSS score of 10.0, indicating a severe risk with complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or publicly available exploit code in Metasploit or ExploitDB, the vulnerability has garnered significant community discussion, suggesting awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
3.21CPE matchmatch criteria
cpe:2.3:o:edimax:br-6104k_router_firmware:3.21:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:h:edimax:br-6104k:-:*:*:*:*:*:*:*
1.83CPE matchmatch criteria
cpe:2.3:o:canyon-tech:cn-wf512_router_firmware:1.83:*:*:*:*:*:*:*
2.08CPE matchmatch criteria
cpe:2.3:o:canyon-tech:cn-wf514_router_firmware:2.08:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:h:canyon-tech:cn-wf512:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.20%
Probability of exploitation in next 30 days
EPSS Percentile
89.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0420 is in the 82nd percentile among its peer group of 51,455 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.