March 3, 2022 · Applied Cybernetics Group
CVE-2017-12235 — Cisco IOS software
Cisco IOS Software for Cisco Industrial Ethernet Switches PROFINET Denial-of-Service Vulnerability
- Added to KEV
2022-03-03- Federal due date
2022-03-24- Vendor
- Cisco
- Product
- IOS software
- EPSS
- 93.5th percentile (score 0.071, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2017-12235
CISA short description
A vulnerability in the implementation of the PROFINET Discovery and Configuration Protocol (PN-DCP) for Cisco IOS could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service.
Required action
Apply updates per vendor instructions.