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CVE-2023-20268

MEDIUMCVSS 4.7/10EPSS 0.24%

Last modified

CVE-2023-20268 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. A vulnerability in the packet processing functionality of Cisco access point (AP) software could allow an unauthenticated, adjacent attacker to exhaust resources on an affected device.  This vulnerability is due to insufficient management of resources when handling certain types of traffic. An attacker could exploit this vulnerability by sending a series of specific wireless packets to an affected device. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

A vulnerability in the packet processing functionality of Cisco access point (AP) software could allow an unauthenticated, adjacent attacker to exhaust resources on an affected device.  This vulnerability is due to insufficient management of resources when handling certain types of traffic. An attacker could exploit this vulnerability by sending a series of specific wireless packets to an affected device. A successful exploit could allow the attacker to consume resources on an affected device. A sustained attack could lead to the disruption of the Control and Provisioning of Wireless Access Points (CAPWAP) tunnel and intermittent loss of wireless client traffic.

Metrics

CVSS 3.1
4.7/10

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

EPSS Probability
0.24%

14.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoWireless Lan Controller Software< 8.10.190.0
CiscoCatalyst 9800 Embedded Wireless Controller Firmware< 17.3.8
CiscoCatalyst 9800 Embedded Wireless Controller Firmware>= 17.4.0, < 17.6.6
CiscoCatalyst 9800 Embedded Wireless Controller Firmware>= 17.8.0, < 17.9.4
CiscoBusiness 150ax Firmware< 10.6.2.0
CiscoBusiness 151axm Firmware< 10.6.2.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-20268?
A vulnerability in the packet processing functionality of Cisco access point (AP) software could allow an unauthenticated, adjacent attacker to exhaust resources on an affected device.&nbsp; This vulnerability is due to insufficient management of resources when handling certain types of traffic. An attacker could exploit this vulnerability by sending a series of specific wireless packets to an affected device. A successful exploit could allow the attacker to consume resources on an affected device. A sustained attack could lead to the disruption of the Control and Provisioning of Wireless Access Points (CAPWAP) tunnel and intermittent loss of wireless client traffic.
How severe is CVE-2023-20268?
CVE-2023-20268 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.
How do I fix CVE-2023-20268?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-20268?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST