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
Published Jan 6, 2012
5.8
MEDIUMCVSS 2.0
EPSS 3.27%
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.
Affected products
No data.
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.27% (0.03266) | 87.98th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.34% (0.03340) | 87.04th | v5 (v2026.06.15) |
| Feb 10, 2026 | 26.20% (0.26201) | 96.17th | v4 (v2025.03.14) |
| Sep 6, 2025 | 32.78% (0.32781) | 96.74th | v4 (v2025.03.14) |
| Aug 26, 2025 | 30.73% (0.30735) | 96.56th | v4 (v2025.03.14) |
| Mar 17, 2025 | 15.34% (0.15344) | 94.13th | v4 (v2025.03.14) |
| Dec 17, 2024 | 5.67% (0.05667) | 93.21th | v3 (v2023.03.01) |
| Dec 12, 2024 | 4.08% (0.04081) | 92.46th | v3 (v2023.03.01) |
| Jul 6, 2024 | 4.54% (0.04544) | 92.57th | v3 (v2023.03.01) |
| Dec 2, 2023 | 4.08% (0.04081) | 91.14th | v3 (v2023.03.01) |
| Oct 5, 2023 | 5.67% (0.05667) | 92.41th | v3 (v2023.03.01) |
| Aug 6, 2023 | 9.56% (0.09558) | 93.96th | v3 (v2023.03.01) |
| Apr 1, 2023 | 9.44% (0.09441) | 93.73th | v3 (v2023.03.01) |
| Mar 7, 2023 | 10.18% (0.10185) | 93.97th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.79% (0.06790) | 92.15th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.79% (0.06790) | 91.41th | v2 (v2022.01.01) |
| Mar 22, 2022 | 6.79% (0.06790) | 79.97th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.02% (0.07015) | 79.97th | v2 (v2022.01.01) |
References (6)
- http://code.google.com/p/reaver-wps/ x_refsource_MISC
- http://sviehb.files.wordpress.com/2011/12/viehboeck_wps.pdf x_refsource_MISC
- http://sviehb.wordpress.com/2011/12/27/wi-fi-protected-setup-pin-brute-force-vulnerability/ x_refsource_MISC
- http://tools.cisco.com/security/center/content/CiscoSecurityResponse/cisco-sr-20120111-wps vendor-advisoryx_refsource_CISCO
- http://www.kb.cert.org/vuls/id/723755 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.us-cert.gov/cas/techalerts/TA12-006A.html third-party-advisoryx_refsource_CERTUS Government Resource
| Link | Providers | Tags |
|---|---|---|
| http://code.google.com/p/reaver-wps/ | x_refsource_MISC | |
| http://sviehb.files.wordpress.com/2011/12/viehboeck_wps.pdf | x_refsource_MISC | |
| http://sviehb.wordpress.com/2011/12/27/wi-fi-protected-setup-pin-brute-force-vulnerability/ | x_refsource_MISC | |
| http://tools.cisco.com/security/center/content/CiscoSecurityResponse/cisco-sr-20120111-wps | vendor-advisoryx_refsource_CISCO | |
| http://www.kb.cert.org/vuls/id/723755 | third-party-advisoryx_refsource_CERT-VNUS Government Resource | |
| http://www.us-cert.gov/cas/techalerts/TA12-006A.html | third-party-advisoryx_refsource_CERTUS Government Resource |
Change history (0)
No recorded changes yet.