What is CVE-2017-12231?

CVE-2017-12231 is a vulnerability in Cisco Ios, classified under CWE-399. Published 2017-09-28.

Is CVE-2017-12231 known to be exploited?

Yes. CVE-2017-12231 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.

Vulnerability in Cisco Ios

CVE-2017-12231

A vulnerability in the implementation of Network Address Translation (NAT) functionality in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The…

EPSS: 0.093 (92.9th percentile) — read the EPSS interpretation.

Affected products

N/a Cisco Ios — versions Cisco IOS

Weakness classification (CWE)

CWE-399

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

1039449 (vdb-entry, x_refsource_SECTRACK)
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927… (x_refsource_CONFIRM)
101039 (vdb-entry, x_refsource_BID)

Frequently asked questions

What is CVE-2017-12231?: CVE-2017-12231 is a vulnerability in Cisco Ios, classified under CWE-399. Published 2017-09-28.
Is CVE-2017-12231 known to be exploited?: Yes. CVE-2017-12231 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.