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CVE-2017-12235

58
FAUCET Score

CVE-2017-12235 is a denial-of-service vulnerability in Cisco IOS 12.2 through 15.6, affecting devices configured to process PROFINET messages, where improper parsing of PROFINET Discovery and Configuration Protocol (PN-DCP) Identify Request packets can cause a device reload. With a CVSS score of 7.5 (HIGH), it is easily exploitable remotely by an unauthenticated attacker with low attack complexity, leading to a complete loss of availability. This vulnerability is listed in the KEV catalog, indicating active exploitation, yet there is no public exploit code available (Metasploit, Nuclei, ExploitDB) and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 12.2, <= 15.6CPE matchmatch criteria
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.13%
Probability of exploitation in next 30 days
EPSS Percentile
93.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Mar 3, 2022
This CVE's current EPSS score of 0.0713 is in the 89th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-profinet
Vendor Advisory
securityfocus.com / bid/101043
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id/1039451
Broken LinkThird Party AdvisoryVDB Entry