THREATPORT/VULNERABILITY/CVE-2011-5053
MEDIUM SEVERITY

CVE-2011-5053

Wifi Protected Setup Protocol vulnerability

CVSS
5.8
EPSS
3.3%
EPSS pct
87th
Exploited
No known
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 vendor
Wi Fi
Affected product
Wifi Protected Setup Protocol
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:N
Weakness type (CWE)
  • CWE-287 — Improper Authentication
Published
2012-01-06

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality, partial impact to integrity.

Its EPSS score of 3.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2011-5053

  • Confirm whether Wi Fi Wifi Protected Setup Protocol is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2011-5053.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2011-5053

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2011-5053 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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