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TI-2017-09057 Aliases CVE-2017-12281GHSA-q497-x3rm-48vr

Improper authentication in Cisco Aironet 1800, 2800, and 3800 Series Access Points

Priority LOW 34CWE-287Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

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.

Why it matters now

EPSS 0.00715 53rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Cisco Aironet 1800, 2800, and 3800 Series Access PointsCisco Aironet 1800, 2800, and 3800 Series Access Points—No fix listedCNA
  • Cisco Aironet 1800, 2800, and 3800 Series Access Points Vendor— Affected Cisco Aironet 1800, 2800, and 3800 Series Access Points Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:o:cisco:aironet_1800_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableCisco
cpe:2.3:h:cisco:aironet_1830e:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:aironet_1830i:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:aironet_1850e:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:aironet_1850i:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:aironet_2800_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableCisco
cpe:2.3:h:cisco:aironet_2800e:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:aironet_2800i:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:aironet_3800_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableCisco
cpe:2.3:h:cisco:aironet_3800e:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
  • cpe:2.3:o:cisco:aironet_1800_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
  • cpe:2.3:h:cisco:aironet_1830e:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:aironet_1830i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:aironet_1850e:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:aironet_1850i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:aironet_2800_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
  • cpe:2.3:h:cisco:aironet_2800e:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:aironet_2800i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:aironet_3800_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
  • cpe:2.3:h:cisco:aironet_3800e:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:h:cisco:aironet_3800i:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:aironet_3800p:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
  • cpe:2.3:h:cisco:aironet_3800i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:aironet_3800p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-12281
  2. 2026-10-03 Alias added: GHSA-q497-x3rm-48vr

References

Advisory 1

  • TI-2019-11374 Cisco Aironet Access Points Unauthorized Access Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2020-15977 An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H. CVSS 3.1MEDIUM 6.5
  • TI-2020-15976 An issue was discovered in the kernel in NetBSD 7.1. CVSS 3.1MEDIUM 5.3
  • TI-2019-11378 Cisco Aironet Access Points Bridge Protocol Data Unit Port Disable Denial of Service Vulnerability CVSS 3.1MEDIUM 6.5
  • TI-2020-15068 The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired… CVSS 3.1LOW 3.5
  • TI-2020-15067 The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired… CVSS 3.1LOW 2.6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences