CVE-2017-12281

Name: CVE-2017-12281
Creator: NVD / NIST
Published: 2017-11-02T16:29:00.613+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.71%

Last modified Jun 17, 2026

CVE-2017-12281 is a vulnerability of currently unknown severity. A vulnerability in the implementation of Protected Extensible Authentication Protocol (PEAP) functionality for standalone configurations of Cisco Aironet 1800, 2800, and 3800 Series Access Points could allow an unauthenticated, adjacent attacker to bypass authentication and connect to an affected device. The vulnerability exists because the affected device uses an incorrect default configuration setting of fail open when running in standalone mode. EPSS estimates a 0.71% chance of exploitation in the next 30 days.

Description

A vulnerability in the implementation of Protected Extensible Authentication Protocol (PEAP) functionality for standalone configurations of Cisco Aironet 1800, 2800, and 3800 Series Access Points could allow an unauthenticated, adjacent attacker to bypass authentication and connect to an affected device. The vulnerability exists because the affected device uses an incorrect default configuration setting of fail open when running in standalone mode. An attacker could exploit this vulnerability by attempting to connect to an affected device. A successful exploit could allow the attacker to bypass authentication and connect to the affected device. This vulnerability affects Cisco Aironet 1800, 2800, and 3800 Series Access Points that are running a vulnerable software release and use WLAN configuration settings that include FlexConnect local switching and central authentication with MAC filtering. Cisco Bug IDs: CSCvd46314.

Metrics

EPSS Probability

0.71%

49.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Aironet 1800 Firmware	All versions
Cisco	Aironet 2800 Firmware	All versions
Cisco	Aironet 3800 Firmware	All versions

References

http://www.securityfocus.com/bid/101649Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039725Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-aironet3Vendor Advisory
http://www.securityfocus.com/bid/101649Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039725Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-aironet3Vendor Advisory

Timeline

Published: Nov 2, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-12281?

How severe is CVE-2017-12281?

Severity scoring for CVE-2017-12281 is pending analysis. The EPSS model estimates a 0.71% probability of exploitation in the next 30 days.

How do I fix CVE-2017-12281?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-12281?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST