CVE-2017-6672

Name: CVE-2017-6672
Creator: NVD / NIST
Published: 2017-07-25T19:29:00.207+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.83%

Last modified Jun 17, 2026

CVE-2017-6672 is a vulnerability of currently unknown severity. A vulnerability in certain filtering mechanisms of access control lists (ACLs) for Cisco ASR 5000 Series Aggregation Services Routers through 21.x could allow an unauthenticated, remote attacker to bypass ACL rules that have been configured for an affected device. More Information: CSCvb99022 CSCvc16964 CSCvc37351 CSCvc54843 CSCvc63444 CSCvc77815 CSCvc88658 CSCve08955 CSCve14141 CSCve33870.. EPSS estimates a 1.83% chance of exploitation in the next 30 days.

Description

A vulnerability in certain filtering mechanisms of access control lists (ACLs) for Cisco ASR 5000 Series Aggregation Services Routers through 21.x could allow an unauthenticated, remote attacker to bypass ACL rules that have been configured for an affected device. More Information: CSCvb99022 CSCvc16964 CSCvc37351 CSCvc54843 CSCvc63444 CSCvc77815 CSCvc88658 CSCve08955 CSCve14141 CSCve33870.

Metrics

EPSS Probability

1.83%

76.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Cisco	Asr 5000 Series Software	19.3.5
Cisco	Asr 5000 Series Software	19.3.11
Cisco	Asr 5000 Series Software	19.3.12
Cisco	Asr 5000 Series Software	19.6.0
Cisco	Asr 5000 Series Software	19.6.3
Cisco	Asr 5000 Series Software	19.6.6
Cisco	Asr 5000 Series Software	20.1.v5
Cisco	Asr 5000 Series Software	20.2.4
Cisco	Asr 5000 Series Software	20.2.12
Cisco	Asr 5000 Series Software	20.3.0
Cisco	Asr 5000 Series Software	20.3.1
Cisco	Asr 5000 Series Software	21.0.v1.66638
Cisco	Asr 5000 Series Software	21.0.v2
Cisco	Asr 5000 Series Software	21.1.0
Cisco	Asr 5000 Series Software	21.1.2
Cisco	Asr 5000 Series Software	21.1.m0.65710
Cisco	Asr 5000 Series Software	21.1.m0.65921
Cisco	Asr 5000 Series Software	21.1.m0.65931
Cisco	Asr 5000 Series Software	21.1.m0.65986
Cisco	Asr 5000 Series Software	21.1.v0
Cisco	Asr 5000 Series Software	21.2.a0.65914
Cisco	Asr 5000 Series Software	21.2.a0.65995
Cisco	Asr 5000 Series Software	21.3.0

References

http://www.securityfocus.com/bid/99921Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038962Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-asr1Vendor Advisory
http://www.securityfocus.com/bid/99921Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038962Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-asr1Vendor Advisory

Timeline

Published: Jul 25, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-6672?

How severe is CVE-2017-6672?

Severity scoring for CVE-2017-6672 is pending analysis. The EPSS model estimates a 1.83% probability of exploitation in the next 30 days.

How do I fix CVE-2017-6672?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-6672?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST