CVE-2017-12234 describes multiple denial-of-service vulnerabilities in Cisco IOS versions 12.4 through 15.6, stemming from improper parsing of crafted Common Industrial Protocol (CIP) packets. An unauthenticated, remote attacker can exploit these flaws by sending specially designed CIP packets, causing affected Cisco devices to reload. This vulnerability carries a high CVSS score of 7.5 due to its network-based attack vector and high impact on availability. Notably, this CVE is listed in CISA's KEV catalog, indicating active exploitation in the wild, despite a lack of public exploit code or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 12.4, <= 15.6CPE matchmatch criteria | cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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