What is CVE-2022-20945?

CVE-2022-20945 is a high-severity vulnerability in Cisco Catalyst_9800-40, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.4/10. Published 2022-09-30.

How severe is CVE-2022-20945?

High severity. CVSS v3 base score is 7.4 out of 10.

Buffer overflow in Cisco Catalyst_9800-40

CVE-2022-20945

A vulnerability in the 802.11 association frame validation of Cisco Catalyst 9100 Series Access Points (APs) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnera…

Vulnerability class: Buffer Overflow

EPSS: 0.004 (35.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Cisco Catalyst_9800-40
Cisco Catalyst_9800-40_firmware
Cisco Catalyst_9800-80
Cisco Catalyst_9800-80_firmware
Cisco Catalyst_9800-cl
Cisco Catalyst_9800-cl_firmware
Cisco Catalyst_9800-l
Cisco Catalyst_9800-l_firmware
Cisco Aironet Access Point Software (Ios Xe Controller) — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)
CWE-20 — Improper Input Validation

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2022-20945?: CVE-2022-20945 is a high-severity vulnerability in Cisco Catalyst_9800-40, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.4/10. Published 2022-09-30.
How severe is CVE-2022-20945?: High severity. CVSS v3 base score is 7.4 out of 10.