CVE-2020-3203 is a high-severity vulnerability (CVSS 8.6) in Cisco Catalyst 9800 Series Wireless Controllers running Cisco IOS XE Software, specifically within the locally significant certificate (LSC) provisioning feature. An unauthenticated, remote attacker can exploit this by sending crafted SSL packets, leading to a memory leak and ultimately a denial of service (DoS) condition. While the vulnerability has a high impact and is easily exploitable over the network, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
16.1.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.1.1:*:*:*:*:*:*:* | ||
16.1.2CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.1.2:*:*:*:*:*:*:* | ||
16.1.3CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.1.3:*:*:*:*:*:*:* | ||
16.2.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.2.1:*:*:*:*:*:*:* | ||
16.2.2CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.2.2:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
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