CVE-2011-5053

high

Description

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.

References

http://www.us-cert.gov/cas/techalerts/TA12-006A.html

http://www.kb.cert.org/vuls/id/723755

http://tools.cisco.com/security/center/content/CiscoSecurityResponse/cisco-sr-20120111-wps

http://sviehb.wordpress.com/2011/12/27/wi-fi-protected-setup-pin-brute-force-vulnerability/

http://sviehb.files.wordpress.com/2011/12/viehboeck_wps.pdf

http://code.google.com/p/reaver-wps/

Details

Source: Mitre, NVD

Published: 2012-01-06

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 5.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Severity: High

EPSS

EPSS: 0.0334