{"id":"CVE-2016-8276","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-8276","generatedAt":"2026-10-28T21:56:23.650Z","title":"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…","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.","published":"2016-10-03T21:59:09.000Z","lastModified":"2026-06-17T00:54:05.000Z","status":"Modified","sourceIdentifier":"psirt@huawei.com","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-119"],"affected":["huawei/usg2100","huawei/usg2200","huawei/usg5100","huawei/usg5500"],"epss":{"score":0.05613,"percentile":0.92878,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.04111,"percentile":0.90351},{"date":"2026-09-22","score":0.05613,"percentile":0.9257}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (5.61%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160914-01-usg-en","tags":["Vendor Advisory"],"source":"psirt@huawei.com"},{"url":"http://www.securityfocus.com/bid/92962","tags":["Third Party Advisory","VDB Entry"],"source":"psirt@huawei.com"},{"url":"http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160914-01-usg-en","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/92962","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-8276","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}