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Vulnerability record · CVE-2016-8276 · published 3 October 2016

CVE-2016-8276: Huawei usg2100 memory buffer overflow vulnerability

Huawei · Usg2100

Buffer 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.

9.8 CVSS 3.0 Critical EPSS 5.6% · top 7.4% CWE-119 · Memory buffer overflow
9.8CVSS 3.0 base score, v2 9.3
5.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Buffer 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.

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160914-01-usg-en Vendor Advisory
http://www.securityfocus.com/bid/92962 Third Party AdvisoryVDB Entry
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160914-01-usg-en Vendor Advisory
http://www.securityfocus.com/bid/92962 Third Party AdvisoryVDB Entry

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Source: NIST National Vulnerability Database (record CVE-2016-8276), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.