CVE-2011-5053
MEDIUM · CVSS 5.8EPSS 3.3%EU EUVD
The Wi-Fi Protected Setup (WPS) protocol, when the "external registrar" authentication method is used, does not properly inform clients about failed PIN authentication, which makes it easier for remote attackers to discover the PIN value, and consequently discover the Wi-Fi network password or reconfigure an access point, by reading EAP-NACK messages.
Key facts
- CVSS score
- 5.8 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:N- Weakness (CWE)
- CWE-287
- EPSS score
- 3.3% (88th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-4956)
- Published
- January 6, 2012
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-4956 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- wi-fi / wifi protected setup protocol
References
- http://code.google.com/p/reaver-wps/
- http://sviehb.files.wordpress.com/2011/12/viehboeck_wps.pdf
- http://sviehb.wordpress.com/2011/12/27/wi-fi-protected-setup-pin-brute-force-vulnerability/
- http://tools.cisco.com/security/center/content/CiscoSecurityResponse/cisco-sr-20120111-wps
- http://www.kb.cert.org/vuls/id/723755(US Government Resource)
- http://www.us-cert.gov/cas/techalerts/TA12-006A.html(US Government Resource)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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