CVE-2024-20354

MEDIUM
Published Mar 27, 2024 Modified Aug 13, 2025 CWE-460

Description

A vulnerability in the handling of encrypted wireless frames of Cisco Aironet Access Point (AP) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on the affected device. This vulnerability is due to incomplete cleanup of resources when dropping certain malformed frames. An attacker could exploit this vulnerability by connecting as a wireless client to an affected AP and sending specific malformed frames over the wireless connection. A successful exploit could allow the attacker to cause degradation of service to other clients, which could potentially lead to a complete DoS condition.

CVSS v3.1 Score

4.7
MEDIUM
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

Weakness Type (CWE)

CWE-460 CWE-460

Affected Products

Vendor Product
cisco wireless_lan_controller_software
cisco wireless_lan_controller_software
cisco aironet_1530e
cisco aironet_1530i
cisco aironet_1552h
cisco aironet_1552s
cisco aironet_1552wu
cisco aironet_1700i
cisco aironet_2700e
cisco aironet_2700i
cisco aironet_3700e
cisco aironet_3700i
cisco aironet_3700p
cisco ap801
cisco ap802
cisco ap803
cisco iw3700
cisco ios_xe
cisco ios_xe
cisco ios_xe
cisco ios_xe
cisco ios_xe
cisco aironet_1530e
cisco aironet_1530i
cisco aironet_1552h
cisco aironet_1552s
cisco aironet_1552wu
cisco aironet_1700i
cisco aironet_2700e
cisco aironet_2700i
cisco aironet_3700e
cisco aironet_3700i
cisco aironet_3700p
cisco ap801
cisco ap802
cisco ap803
cisco iw3700

References

Frequently Asked Questions

What is CVE-2024-20354? +
A vulnerability in the handling of encrypted wireless frames of Cisco Aironet Access Point (AP) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on the affected device. This vulnerability is due to incomplete cleanup of resources when dropping certain malformed frames. An attacker could exploit this vulnerability by connecting as a wireless client to an affected AP and sending specific malformed frames over the wireless connection. A successful exploit could allow the attacker to cause degradation of service to other clients, which could potentially lead to a complete DoS condition. It has a CVSS v3.1 base score of 4.7 (MEDIUM).
How severe is CVE-2024-20354? +
CVE-2024-20354 has a CVSS v3.1 score of 4.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2024-20354? +
CVE-2024-20354 affects products from cisco, specifically: aironet_1530e, aironet_1530i, aironet_1552h, aironet_1552s, aironet_1552wu, aironet_1700i, aironet_2700e, aironet_2700i, aironet_3700e, aironet_3700i, aironet_3700p, ap801, ap802, ap803, ios_xe, iw3700, wireless_lan_controller_software. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-20354? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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