How severe is CVE-2017-12232?

CVE-2017-12232 has a CVSS 3.1 base score of 6.5 (MEDIUM). EPSS estimates a 2.2% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2017-12232: Cisco IOS Software for Cisco Integrated Services

CISA Known Exploited Vulnerabilities

Cisco IOS Software for Cisco Integrated Services Routers Denial-of-Service Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-03-03

Remediation due

2022-03-24

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2017-12232

Description

A vulnerability in the implementation of a protocol in Cisco Integrated Services Routers Generation 2 (ISR G2) Routers running Cisco IOS 15.0 through 15.6 could allow an unauthenticated, adjacent attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to a misclassification of Ethernet frames. An attacker could exploit this vulnerability by sending a crafted Ethernet frame to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvc03809.

Severity

CVSS 3.1 · CISA6.5 MEDIUM

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

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impactpartial

Affected Products

Vendor	Product	Affected versions
-	Cisco IOS	Cisco IOS

References

3 Links

Vulnerability databases

Other references

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-rbip-dos

Record Details

Published

2017-09-28

Last updated

2026-01-12

Assigner (CNA)

cisco

Credited to

Related Tool Categories

Tool categories that test for or protect against this vulnerability class.

CWE-399 · Resource Management Errors

Fuzzing

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.