CVE-2016-6669

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Summary

CVECVE-2016-6669
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-09-22 15:59:05 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionBuffer overflow in the Authentication, Authorization and Accounting (AAA) module in Huawei USG2100, USG2200, USG5100, and USG5500 unified security gateways with software before V300R001C10SPC600 allows remote authenticated RADIUS servers to execute arbitrary code by sending a crafted EAP packet.

Risk And Classification

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

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

EPSS: 0.021220000 probability, percentile 0.842390000 (date 2026-05-06)

Problem Types: CWE-119 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary7.5HIGHCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary7.1AV:N/AC:H/Au:S/C:C/I:C/A:C

CVSS v3.0 Breakdown

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

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
High
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:H/Au:S/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Huawei Usg2100 - All All All
Operating System Huawei Usg2100 Firmware All All All All
Operating System Huawei Usg2100 Firmware All All All All
Hardware Huawei Usg2200 - All All All
Operating System Huawei Usg2200 Firmware All All All All
Operating System Huawei Usg2200 Firmware All All All All
Hardware Huawei Usg5100 - All All All
Operating System Huawei Usg5100 Firmware All All All All
Operating System Huawei Usg5100 Firmware All All All All
Hardware Huawei Usg5500 - All All All
Operating System Huawei Usg5500 Firmware All All All All
Operating System Huawei Usg5500 Firmware All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Multiple Huawei USG Products CVE-2016-6669 Buffer Overflow Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Security Advisory - Buffer Overflow Vulnerability in Huawei USG Products af854a3a-2127-422b-91ae-364da2661108 www.huawei.com VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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