CVE-2022-20856 is a denial-of-service vulnerability in Cisco IOS XE Wireless Controller Software for Catalyst 9000 Family devices, stemming from a logic error in processing CAPWAP Mobility messages. An unauthenticated, remote attacker can exploit this by sending crafted packets, leading to resource exhaustion and device reloads. Rated 7.5 HIGH, the attack requires no user interaction and has a high impact on availability. Currently, there is no public exploit code, active exploitation, or significant community discussion regarding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
17.3.4cCPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:17.3.4c:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
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