CVE-2024-20354

CVE-2024-20354 is a medium-severity vulnerability in Cisco Wireless Lan Controller Software with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-460.

Key facts

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.

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.
How severe is CVE-2024-20354?
CVE-2024-20354 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2024-20354 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-20354?
CVE-2024-20354 primarily affects Cisco Wireless Lan Controller Software. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-20354?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-20354 have an EU (EUVD) identifier?
Yes. CVE-2024-20354 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-18069.
When was CVE-2024-20354 published?
CVE-2024-20354 was published on 2024-03-27 and last updated on 2026-06-17.

References

Affected products (2)

More vulnerabilities in Cisco Wireless Lan Controller Software

All CVEs affecting Cisco Wireless Lan Controller Software →

Other CWE-460 vulnerabilities

Browse all CWE-460 vulnerabilities →