CVE-2024-20336

CVE-2024-20336 is a medium-severity vulnerability in Cisco Wap121 Firmware with a CVSS 3.x base score of 6.5. 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-121.

Key facts

Description

A vulnerability in the web-based user interface of Cisco Small Business 100, 300, and 500 Series Wireless APs could allow an authenticated, remote attacker to perform buffer overflow attacks against an affected device. In order to exploit this vulnerability, the attacker must have valid administrative credentials for the device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system.

Frequently asked questions

What is CVE-2024-20336?
A vulnerability in the web-based user interface of Cisco Small Business 100, 300, and 500 Series Wireless APs could allow an authenticated, remote attacker to perform buffer overflow attacks against an affected device. In order to exploit this vulnerability, the attacker must have valid administrative credentials for the device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system.
How severe is CVE-2024-20336?
CVE-2024-20336 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2024-20336 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-20336?
CVE-2024-20336 primarily affects Cisco Wap121 Firmware. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-20336?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-20336 have an EU (EUVD) identifier?
Yes. CVE-2024-20336 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-18051.
When was CVE-2024-20336 published?
CVE-2024-20336 was published on 2024-03-06 and last updated on 2026-06-17.

References

Affected products (12)

More vulnerabilities in Cisco Wap121 Firmware

All CVEs affecting Cisco Wap121 Firmware →

Other CWE-121 (Stack-based Buffer Overflow) vulnerabilities

Browse all CWE-121 (Stack-based Buffer Overflow) vulnerabilities →