Cisco Aironet 1560, 1800, 2800, and 3800 Series Access Points Denial of Service Vulnerability
Key facts
- Attack vector
- Adjacent network
- Privileges required
- Low
- 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 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.
Summary
A vulnerability in the Cisco Aironet Series Access Points (APs) software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to a deadlock condition that may occur when an affected AP attempts to dequeue aggregated traffic that is destined to an attacker-controlled wireless client. An attacker who can successfully transition between multiple Service Set Identifiers (SSIDs) hosted on the same AP while replicating the required traffic patterns could trigger the deadlock condition. A watchdog timer that detects the condition will trigger a reload of the device, resulting in a DoS condition while the device restarts.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco Aironet Access Points | 8.2; 8.3; 8.5; 8.7 | — | No fix listed | CNA |
- Cisco Aironet Access Points VendorCisco Affected 8.2; 8.3; 8.5; 8.7 Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:aironet_access_points:8.2\(166.0\):*:*:*:*:*:*:* | 8.2(166.0) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:aironet_access_points:8.2\(167.3\):*:*:*:*:*:*:* | 8.2(167.3) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:aironet_access_points:8.3\(133.0\):*:*:*:*:*:*:* | 8.3(133.0) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:aironet_access_points:8.3\(141.10\):*:*:*:*:*:*:* | 8.3(141.10) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:aironet_access_points:8.5\(120.0\):*:*:*:*:*:*:* | 8.5(120.0) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:aironet_access_points:8.7\(1.96\):*:*:*:*:*:*:* | 8.7(1.96) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:aironet_access_points:8.7\(1.99\):*:*:*:*:*:*:* | 8.7(1.99) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:aironet_access_points:8.7\(1.107\):*:*:*:*:*:*:* | 8.7(1.107) | Vulnerable | Cisco |
- cpe:2.3:o:cisco:aironet_access_points:8.2\(166.0\):*:*:*:*:*:*:* Versions 8.2(166.0) Vulnerable ·Cisco
- cpe:2.3:o:cisco:aironet_access_points:8.2\(167.3\):*:*:*:*:*:*:* Versions 8.2(167.3) Vulnerable ·Cisco
- cpe:2.3:o:cisco:aironet_access_points:8.3\(133.0\):*:*:*:*:*:*:* Versions 8.3(133.0) Vulnerable ·Cisco
- cpe:2.3:o:cisco:aironet_access_points:8.3\(141.10\):*:*:*:*:*:*:* Versions 8.3(141.10) Vulnerable ·Cisco
- cpe:2.3:o:cisco:aironet_access_points:8.5\(120.0\):*:*:*:*:*:*:* Versions 8.5(120.0) Vulnerable ·Cisco
- cpe:2.3:o:cisco:aironet_access_points:8.7\(1.96\):*:*:*:*:*:*:* Versions 8.7(1.96) Vulnerable ·Cisco
- cpe:2.3:o:cisco:aironet_access_points:8.7\(1.99\):*:*:*:*:*:*:* Versions 8.7(1.99) Vulnerable ·Cisco
- cpe:2.3:o:cisco:aironet_access_points:8.7\(1.107\):*:*:*:*:*:*:* Versions 8.7(1.107) Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-0381
- 2026-10-03 Alias added: GHSA-f5q5-9x4v-vx22
References
Sources
- CVE-2018-0381 · CVE Program
- CVE-2018-0381 · NVD
- FIRST EPSS
- GHSA-f5q5-9x4v-vx22 · GitHub Advisory Database · CC BY 4.0
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