⚠ Actively exploited
Added to CISA KEV on 2022-03-03. Federal agencies required to patch by 2022-03-24. Required action: Apply updates per vendor instructions..
CVE-2017-12235 — Improper Input Validation in Cisco IOS
Severity
7.5HIGHNVD
EPSS
4.9%
top 10.37%
CISA KEV
KEV
Added 2022-03-03
Due 2022-03-24
Exploit
Exploited in wild
Active exploitation observed
Timeline
PublishedSep 29
KEV addedMar 3
KEV dueMar 24
Latest updateMay 13
CISA Required Action: Apply updates per vendor instructions.
Description
A vulnerability in the implementation of the PROFINET Discovery and Configuration Protocol (PN-DCP) for Cisco IOS 12.2 through 15.6 could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to the improper parsing of ingress PN-DCP Identify Request packets destined to an affected device. An attacker could exploit this vulnerability by sending a crafted PN-DCP Identify Request packet to an affe…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6
Affected Packages2 packages
🔴Vulnerability Details
3GHSA▶
GHSA-83w7-v79x-495q: A vulnerability in the implementation of the PROFINET Discovery and Configuration Protocol (PN-DCP) for Cisco IOS 12↗2022-05-13
CVEList▶
CVE-2017-12235: A vulnerability in the implementation of the PROFINET Discovery and Configuration Protocol (PN-DCP) for Cisco IOS 12↗2017-09-28
VulnCheck▶
Cisco IOS Software for Cisco Industrial Ethernet Switches PROFINET Denial-of-Service Vulnerability↗2017