CVE-2021-34740 describes a denial-of-service vulnerability in Cisco Aironet Access Point software, specifically within its WLAN Control Protocol (WCP) implementation. An unauthenticated, adjacent attacker can exploit this by sending specially crafted 802.11 frames, leading to a packet buffer leak and ultimately a device reload. This vulnerability carries a CVSS score of 7.4 (High), indicating a low-complexity attack with no user interaction required, resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 8.10.0, < 8.10.162.0CPE matchmatch criteria | cpe:2.3:o:cisco:aironet_access_point_software:*:*:*:*:*:*:*:* | ||
17.2CPE matchmatch criteria | cpe:2.3:o:cisco:aironet_access_point_software:17.2:*:*:*:*:*:*:* | ||
17.3CPE matchmatch criteria | cpe:2.3:o:cisco:aironet_access_point_software:17.3:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
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The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.