What is CVE-2017-12235?

CVE-2017-12235 is a vulnerability in Cisco Ios, classified under Improper Input Validation. Published 2017-09-28.

Is CVE-2017-12235 known to be exploited?

Yes. CVE-2017-12235 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.

Improper input validation in Cisco Ios

CVE-2017-12235

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 denia…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.052 (90.1th percentile) — read the EPSS interpretation.

Affected products

N/a Cisco Ios — versions Cisco IOS

Weakness classification (CWE)

CWE-20 — Improper Input Validation

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-03-03. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-03-24.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

101043 (vdb-entry, x_refsource_BID)
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927… (x_refsource_CONFIRM)
1039451 (vdb-entry, x_refsource_SECTRACK)

Frequently asked questions

What is CVE-2017-12235?: CVE-2017-12235 is a vulnerability in Cisco Ios, classified under Improper Input Validation. Published 2017-09-28.
Is CVE-2017-12235 known to be exploited?: Yes. CVE-2017-12235 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.