CVE-2021-34768 describes multiple denial-of-service vulnerabilities in Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers, stemming from insufficient validation of CAPWAP packets. An unauthenticated, remote attacker can exploit these by sending a malformed CAPWAP packet, causing the device to crash and reload. With a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network with no user interaction, leading to a complete loss of availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
3.15.1xbsCPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:3.15.1xbs:*:*:*:*:*:*:* | ||
3.15.2xbsCPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:3.15.2xbs:*:*:*:*:*:*:* | ||
17.3.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:17.3.1:*:*:*:*:*:*:* | ||
17.3.2CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:17.3.2:*:*:*:*:*:*:* | ||
17.3.2aCPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:17.3.2a:*:*:*:*:*:*:* |
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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