CVE-2016-9201

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2016-9201
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-12-14 00:59:21 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionA vulnerability in the Zone-Based Firewall feature of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to pass traffic that should otherwise have been dropped based on the configuration. More Information: CSCuz21015. Known Affected Releases: 15.3(3)M3. Known Fixed Releases: 15.6(2)T0.1 15.6(2.0.1a)T0 15.6(2.19)T 15.6(3)M.

Risk And Classification

Primary CVSS: v3.0 7.5 HIGH from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.012530000 probability, percentile 0.794800000 (date 2026-05-11)

Problem Types: CWE-20 | CWE-200 | unspecified

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary7.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

AV:N/AC:L/Au:N/C:P/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Cisco Ios 15.3\(3\)m3 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na Cisco IOS And Cisco IOS XE affected Cisco IOS and Cisco IOS XE Not specified

References

ReferenceSourceLinkTags
Cisco IOS and Cisco IOS XE Software Zone-Based Firewall Feature Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 tools.cisco.com Mitigation, Vendor Advisory
Cisco IOS and Cisco IOS XE Software CVE-2016-9201 Security Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
Cisco IOS/IOS XE Zone-Based Firewall Logic Error Lets Remote Users Bypass the Firewall - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report