Improper input validation in Cisco Aironet Access Point Software
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
A vulnerability in the IP packet processing of Cisco Access Point (AP) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of certain IPv4 packets. An attacker could exploit this vulnerability by sending a crafted IPv4 packet either to or through an affected device. A successful exploit could allow the attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To successfully exploit this vulnerability, the attacker does not need to be associated with the affected AP. This vulnerability cannot be exploited by sending IPv6 packets.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 Point Software | 8.2.100.0; 8.2.130.0; 8.2.111.0; 8.2.110.0; 8.2.121.0; 8.2.141.0; 8.2.151.0; 8.2.160.0; 8.2.161.0; 8.2.164.0; 8.2.166.0; 8.2.170.0; 8.2.163.0; 8.3.102.0; 8.3.111.0; 8.3.112.0; 8.3.121.0; 8.3.122.0; 8.3.130.0; 8.3.131.0; 8.3.132.0; 8.3.133.0; 8.3.140.0; 8.3.141.0; 8.3.143.0; 8.3.150.0; 8.3.108.0; 8.3.90.53; 8.3.104.46; 8.3.200.200; 8.3.104.64; 8.3.15.165; 8.3.90.11; 8.3.135.0; 8.3.104.14; 8.3.90.36; 8.3.15.142; 8.3.104.37; 8.3.15.117; 8.3.15.120; 8.3.15.25; 8.3.15.158; 8.3.15.118; 8.3.90.25; 8.3.15.169; 8.3.90.58; 8.4.100.0; 8.4.1.199; 8.4.1.91; 8.4.1.142; 8.4.1.175; 8.4.1.218; 8.4.1.92; 8.5.103.0; 8.5.105.0; 8.5.110.0; 8.5.120.0; 8.5.131.0; 8.5.140.0; 8.5.135.0; 8.5.151.0; 8.5.101.0; 8.5.102.0; 8.5.161.0; 8.5.160.0; 8.5.100.0; 8.5.171.0; 8.5.164.0; 8.5.182.0; 8.5.182.11 ME; 8.7.102.0; 8.7.106.0; 8.7.1.16; 8.8.100.0; 8.8.111.0; 8.8.120.0; 8.8.125.0; 8.8.130.0; 8.6.101.0; 8.6.1.84; 8.6.1.70; 8.6.1.71; 8.9.100.0; 8.9.111.0; 8.10.105.0; 8.10.111.0; 8.10.130.0; 8.10.112.0; 8.10.122.0; 8.10.113.0; 8.10.121.0; 8.10.141.0; 8.10.142.0; 8.10.151.0; 8.10.150.0; 8.10.171.0; 8.10.181.0; 8.10.182.0; 8.10.161.0; 8.10.170.0; 8.10.183.0; 8.10.162.0; 8.10.185.0 | — | No fix listed | CNA |
| Cisco | Cisco Business Wireless Access Point Software | 10.0.1.0; 10.0.2.0; 10.1.1.0; 10.1.2.0; 10.2.1.0; 10.2.2.0; 10.3.1.0; 10.3.1.1; 10.3.2.0; 1.0.0.13; 1.0.0.16; 1.0.0.3; 1.0.0.39; 1.0.0.4; 1.0.0.5; 1.0.0.7; 1.0.1.2; 1.0.1.3; 1.0.1.4; 1.0.1.5; 1.0.1.6; 1.0.1.7; 1.0.2.0; 1.0.2.13; 1.0.2.14; 1.0.2.15; 1.0.2.16; 1.0.2.17; 1.0.2.2; 1.0.2.8; 1.0.3.1; 1.0.4.4; 1.0.4.3; 1.0.6.6; 1.0.3.4; 1.0.6.8; 1.0.6.2; 1.0.2.3; 1.0.5.3; 1.0.1.10; 1.0.4.2; 1.0.6.5; 1.0.6.7; 1.0.5.0; 1.0.0.10; 1.0.0.12; 1.0.0.14; 1.0.0.15; 1.0.0.17; 1.0.0.9; 1.0.1.11; 1.0.1.12; 1.0.1.9; 1.0.2.6; 1.1.0.5; 1.1.0.7; 1.1.0.9; 1.1.1.0; 1.1.2.4; 1.1.4.6; 1.1.3.2; 1.1.4.0; 1.1.0.3; 1.1.0.4; 1.1.0.6; 1.1.2.3; 10.4.1.0; 10.4.2.0; 10.6.1.0; 10.7.1.0; 10.8.1.0; 1.2.0.2; 1.2.0.3; 1.2.1.3; 1.3.0.3; 1.3.0.4; 1.3.0.6; 1.3.0.7; 10.5.2.0 | — | No fix listed | CNA |
| Cisco | Cisco Aironet Access Point Software (IOS XE Controller) | 16.10.1e; 16.10.1; 17.1.1t; 17.1.1s; 17.1.1; 16.11.1a; 16.11.1; 16.11.1c; 16.11.1b; 16.12.1s; 16.12.4; 16.12.1; 16.12.2s; 16.12.1t; 16.12.4a; 16.12.5; 16.12.3; 16.12.6; 16.12.8; 16.12.7; 16.12.6a; 17.3.1; 17.3.2a; 17.3.3; 17.3.4; 17.3.5; 17.3.2; 17.3.4c; 17.3.5a; 17.3.5b; 17.3.6; 17.2.1; 17.2.1a; 17.2.3; 17.2.2; 17.5.1; 17.4.1; 17.4.2; 17.6.1; 17.6.2; 17.6.3; 17.6.4; 17.6.5; 17.10.1; 17.9.1; 17.9.2; 17.9.3; 17.9.4; 17.9.4a; 17.7.1; 17.8.1; 17.11.1; 17.12.1 | — | No fix listed | CNA |
- Cisco Aironet Access Point Software VendorCisco Affected 8.2.100.0; 8.2.130.0; 8.2.111.0; 8.2.110.0; 8.2.121.0; 8.2.141.0; 8.2.151.0; 8.2.160.0; 8.2.161.0; 8.2.164.0; 8.2.166.0; 8.2.170.0; 8.2.163.0; 8.3.102.0; 8.3.111.0; 8.3.112.0; 8.3.121.0; 8.3.122.0; 8.3.130.0; 8.3.131.0; 8.3.132.0; 8.3.133.0; 8.3.140.0; 8.3.141.0; 8.3.143.0; 8.3.150.0; 8.3.108.0; 8.3.90.53; 8.3.104.46; 8.3.200.200; 8.3.104.64; 8.3.15.165; 8.3.90.11; 8.3.135.0; 8.3.104.14; 8.3.90.36; 8.3.15.142; 8.3.104.37; 8.3.15.117; 8.3.15.120; 8.3.15.25; 8.3.15.158; 8.3.15.118; 8.3.90.25; 8.3.15.169; 8.3.90.58; 8.4.100.0; 8.4.1.199; 8.4.1.91; 8.4.1.142; 8.4.1.175; 8.4.1.218; 8.4.1.92; 8.5.103.0; 8.5.105.0; 8.5.110.0; 8.5.120.0; 8.5.131.0; 8.5.140.0; 8.5.135.0; 8.5.151.0; 8.5.101.0; 8.5.102.0; 8.5.161.0; 8.5.160.0; 8.5.100.0; 8.5.171.0; 8.5.164.0; 8.5.182.0; 8.5.182.11 ME; 8.7.102.0; 8.7.106.0; 8.7.1.16; 8.8.100.0; 8.8.111.0; 8.8.120.0; 8.8.125.0; 8.8.130.0; 8.6.101.0; 8.6.1.84; 8.6.1.70; 8.6.1.71; 8.9.100.0; 8.9.111.0; 8.10.105.0; 8.10.111.0; 8.10.130.0; 8.10.112.0; 8.10.122.0; 8.10.113.0; 8.10.121.0; 8.10.141.0; 8.10.142.0; 8.10.151.0; 8.10.150.0; 8.10.171.0; 8.10.181.0; 8.10.182.0; 8.10.161.0; 8.10.170.0; 8.10.183.0; 8.10.162.0; 8.10.185.0 Fixed in — No fix listed CNA
- Cisco Business Wireless Access Point Software VendorCisco Affected 10.0.1.0; 10.0.2.0; 10.1.1.0; 10.1.2.0; 10.2.1.0; 10.2.2.0; 10.3.1.0; 10.3.1.1; 10.3.2.0; 1.0.0.13; 1.0.0.16; 1.0.0.3; 1.0.0.39; 1.0.0.4; 1.0.0.5; 1.0.0.7; 1.0.1.2; 1.0.1.3; 1.0.1.4; 1.0.1.5; 1.0.1.6; 1.0.1.7; 1.0.2.0; 1.0.2.13; 1.0.2.14; 1.0.2.15; 1.0.2.16; 1.0.2.17; 1.0.2.2; 1.0.2.8; 1.0.3.1; 1.0.4.4; 1.0.4.3; 1.0.6.6; 1.0.3.4; 1.0.6.8; 1.0.6.2; 1.0.2.3; 1.0.5.3; 1.0.1.10; 1.0.4.2; 1.0.6.5; 1.0.6.7; 1.0.5.0; 1.0.0.10; 1.0.0.12; 1.0.0.14; 1.0.0.15; 1.0.0.17; 1.0.0.9; 1.0.1.11; 1.0.1.12; 1.0.1.9; 1.0.2.6; 1.1.0.5; 1.1.0.7; 1.1.0.9; 1.1.1.0; 1.1.2.4; 1.1.4.6; 1.1.3.2; 1.1.4.0; 1.1.0.3; 1.1.0.4; 1.1.0.6; 1.1.2.3; 10.4.1.0; 10.4.2.0; 10.6.1.0; 10.7.1.0; 10.8.1.0; 1.2.0.2; 1.2.0.3; 1.2.1.3; 1.3.0.3; 1.3.0.4; 1.3.0.6; 1.3.0.7; 10.5.2.0 Fixed in — No fix listed CNA
- Cisco Aironet Access Point Software (IOS XE Controller) VendorCisco Affected 16.10.1e; 16.10.1; 17.1.1t; 17.1.1s; 17.1.1; 16.11.1a; 16.11.1; 16.11.1c; 16.11.1b; 16.12.1s; 16.12.4; 16.12.1; 16.12.2s; 16.12.1t; 16.12.4a; 16.12.5; 16.12.3; 16.12.6; 16.12.8; 16.12.7; 16.12.6a; 17.3.1; 17.3.2a; 17.3.3; 17.3.4; 17.3.5; 17.3.2; 17.3.4c; 17.3.5a; 17.3.5b; 17.3.6; 17.2.1; 17.2.1a; 17.2.3; 17.2.2; 17.5.1; 17.4.1; 17.4.2; 17.6.1; 17.6.2; 17.6.3; 17.6.4; 17.6.5; 17.10.1; 17.9.1; 17.9.2; 17.9.3; 17.9.4; 17.9.4a; 17.7.1; 17.8.1; 17.11.1; 17.12.1 Fixed in — No fix listed CNA
CPE configurations NVD · 15
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* | before 17.3.8; 17.4 to before 17.6.6; 17.7 to before 17.9.5; 17.10 to before 17.12.2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:business_access_points:*:*:*:*:*:*:*:* | before 10.9.1.0 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:business_140ac:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:business_140ac_access_point:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:business_141acm:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:business_142acm:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:business_143acm:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:business_145ac:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:business_145ac_access_point:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:business_240ac:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* Versions before 17.3.8; 17.4 to before 17.6.6; 17.7 to before 17.9.5; 17.10 to before 17.12.2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:business_access_points:*:*:*:*:*:*:*:* Versions before 10.9.1.0 Vulnerable ·Cisco
- cpe:2.3:h:cisco:business_140ac:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:business_140ac_access_point:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:business_141acm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:business_142acm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:business_143acm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:business_145ac:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:business_145ac_access_point:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:business_240ac:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Show 5 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:business_access_points:*:*:*:*:*:*:*:* | before 10.6.2.0 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:business_150ax:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:business_150ax_access_point:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:business_151axm:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:wireless_lan_controller_software:*:*:*:*:*:*:*:* | before 8.10.190.0 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:business_access_points:*:*:*:*:*:*:*:* Versions before 10.6.2.0 Vulnerable ·Cisco
- cpe:2.3:h:cisco:business_150ax:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:business_150ax_access_point:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:business_151axm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:wireless_lan_controller_software:*:*:*:*:*:*:*:* Versions before 8.10.190.0 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-20271
- 2026-10-03 Alias added: GHSA-ff9x-f52m-hw5m
- 2026-10-25 EPSS moved to the 50th–90th percentile
References
Advisory 1
More Cisco Business Access Points vulnerabilities
- 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-2020-03096 Cisco Aironet Access Points Ethernet Wired Clients Denial of Service Vulnerability CVSS 3.1HIGH 7.4
Sources
- CVE-2024-20271 · CVE Program
- CVE-2024-20271 · NVD
- FIRST EPSS
- GHSA-ff9x-f52m-hw5m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences