CVE-2018-0197 is a medium-severity vulnerability affecting Cisco IOS and IOS XE Software, specifically within the VLAN Trunking Protocol (VTP) subsystem. It allows an unauthenticated, adjacent attacker to corrupt the internal VTP database and cause a Denial of Service (DoS) by sending specially crafted VTP packets. The vulnerability has a CVSS score of 6.5, indicating a network-adjacent attack vector with low complexity and high impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE. Workarounds are available to mitigate this issue.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
12.1\(5c\)exCPE matchmatch criteria | cpe:2.3:o:cisco:ios:12.1\(5c\)ex:*:*:*:*:*:*:* | ||
12.1\(5c\)ex1CPE matchmatch criteria | cpe:2.3:o:cisco:ios:12.1\(5c\)ex1:*:*:*:*:*:*:* | ||
12.1\(5c\)ex3CPE matchmatch criteria | cpe:2.3:o:cisco:ios:12.1\(5c\)ex3:*:*:*:*:*:*:* | ||
12.1\(6\)ea1CPE matchmatch criteria | cpe:2.3:o:cisco:ios:12.1\(6\)ea1:*:*:*:*:*:*:* | ||
12.1\(6\)ea1aCPE matchmatch criteria | cpe:2.3:o:cisco:ios:12.1\(6\)ea1a:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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