CVE-2016-8276

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Summary

CVECVE-2016-8276
StatePUBLISHED
Assignerhuawei
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-10-03 21:59:09 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionBuffer overflow in the Point-to-Point Protocol over Ethernet (PPPoE) module in Huawei USG2100, USG2200, USG5100, and USG5500 unified security gateways with software before V300R001C10SPC600, when CHAP authentication is configured on the server, allows remote attackers to cause a denial of service (server restart) or execute arbitrary code via crafted packets sent during authentication.

Risk And Classification

Primary CVSS: v3.0 9.8 CRITICAL from [email protected]

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

EPSS: 0.029780000 probability, percentile 0.865960000 (date 2026-05-07)

Problem Types: CWE-119 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary9.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary9.3AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS v3.0 Breakdown

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

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:M/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Huawei Usg2100 v300r001c00 All All All
Application Huawei Usg2100 v300r001c10 All All All
Application Huawei Usg2200 v300r001c00 All All All
Application Huawei Usg2200 v300r001c10 All All All
Application Huawei Usg5100 v300r001c00 All All All
Application Huawei Usg5100 v300r001c10 All All All
Application Huawei Usg5500 v300r001c00 All All All
Application Huawei Usg5500 v300r001c10 All All All

Vendor Declared Affected Products

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

References

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

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