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TI-2018-00400 Aliases CVE-2018-0441GHSA-rv57-79g9-2rpq

Cisco IOS Access Points Software 802.11r Fast Transition Denial of Service Vulnerability

Priority LOW 34CWE-400Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-400.

Summary

A vulnerability in the 802.11r Fast Transition feature set of Cisco IOS Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a corruption of certain timer mechanisms triggered by specific roaming events. This corruption will eventually cause a timer crash. An attacker could exploit this vulnerability by sending malicious reassociation events multiple times to the same AP in a short period of time, causing a DoS condition on the affected AP.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00856 58th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Aironet Access Point Softwareall versions—No fix listedCNA
  • Cisco Aironet Access Point Software VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:o:cisco:access_points:8.0\(140.0\):*:*:*:*:*:*:*8.0(140.0)VulnerableCisco
cpe:2.3:o:cisco:access_points:8.2\(141.0\):*:*:*:*:*:*:*8.2(141.0)VulnerableCisco
cpe:2.3:o:cisco:access_points:8.2\(151.0\):*:*:*:*:*:*:*8.2(151.0)VulnerableCisco
cpe:2.3:o:cisco:access_points:8.3\(102.0\):*:*:*:*:*:*:*8.3(102.0)VulnerableCisco
cpe:2.3:o:cisco:access_points:8.3\(112.0\):*:*:*:*:*:*:*8.3(112.0)VulnerableCisco
cpe:2.3:o:cisco:access_points:8.3\(114.74\):*:*:*:*:*:*:*8.3(114.74)VulnerableCisco
cpe:2.3:o:cisco:access_points:15.3\(3\)jd:*:*:*:*:*:*:*15.3(3)jdVulnerableCisco
cpe:2.3:o:cisco:access_points:*:*:*:*:*:*:*:*before 8.3.140.0; 8.4 to before 8.5.110.0VulnerableCisco
  • cpe:2.3:o:cisco:access_points:8.0\(140.0\):*:*:*:*:*:*:* Versions 8.0(140.0) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:access_points:8.2\(141.0\):*:*:*:*:*:*:* Versions 8.2(141.0) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:access_points:8.2\(151.0\):*:*:*:*:*:*:* Versions 8.2(151.0) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:access_points:8.3\(102.0\):*:*:*:*:*:*:* Versions 8.3(102.0) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:access_points:8.3\(112.0\):*:*:*:*:*:*:* Versions 8.3(112.0) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:access_points:8.3\(114.74\):*:*:*:*:*:*:* Versions 8.3(114.74) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:access_points:15.3\(3\)jd:*:*:*:*:*:*:* Versions 15.3(3)jd Vulnerable ·Cisco
  • cpe:2.3:o:cisco:access_points:*:*:*:*:*:*:*:* Versions before 8.3.140.0; 8.4 to before 8.5.110.0 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-0441
  2. 2026-10-03 Alias added: GHSA-rv57-79g9-2rpq

References

Advisory 1

  • TI-2020-03104 Cisco Aironet Access Points UDP Flooding Denial of Service Vulnerability CVSS 3.1HIGH 8.6
  • TI-2020-03103 Cisco Aironet Access Point Authentication Flood Denial of Service Vulnerability CVSS 3.1HIGH 8.6
  • TI-2019-01540 Cisco IOS Access Points Software 802.11r Fast Transition Denial of Service Vulnerability CVSS 3.1HIGH 7.4
  • TI-2020-03096 Cisco Aironet Access Points Ethernet Wired Clients Denial of Service Vulnerability CVSS 3.1HIGH 7.4

Sources

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