What is CVE-2016-8796?

CVE-2016-8796 is a high-severity vulnerability in Huawei Usg9520, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2017-04-02.

How severe is CVE-2016-8796?

High severity. CVSS v3 base score is 7.5 out of 10.

Improper input validation in Huawei Usg9520

CVE-2016-8796

Huawei USG9520 V300R001C01, USG9560 V300R001C01, and USG9580 V300R001C01 allow unauthenticated attackers to send abnormal DHCP request packets to the affected products to trigger a DoS condition.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2017-04-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.010 (63.4th percentile), scored 2026-10-23.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Huawei Usg9520
Huawei Usg9520 Firmware — versions v300r001c01
Huawei Usg9560
Huawei Usg9560 Firmware — versions v300r001c01
Huawei Usg9580
Huawei Usg9580 Firmware — versions v300r001c01
Usg9520,usg9560,usg9580, Usg9520 V300r001c01,usg9560 V300r001c01,usg9580 V300r001c01 — versions USG9520,USG9560,USG9580, USG9520 V300R001C01,USG9560 V300R001C01,USG9580 V300R001C01

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.securityfocus.com/bid/94405 (VDB Entry, Third Party Advisory, vdb-entry)
www.huawei.com/en/psirt/security-advisories/huawei-sa-20161116-01-firewall-en (Vendor Advisory)

Frequently asked questions

What is CVE-2016-8796?: CVE-2016-8796 is a high-severity vulnerability in Huawei Usg9520, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2017-04-02.
How severe is CVE-2016-8796?: High severity. CVSS v3 base score is 7.5 out of 10.