THREATPORT/VULNERABILITY/CVE-2016-6669
HIGH SEVERITY

CVE-2016-6669

Usg2100 Firmware vulnerability

CVSS
7.5
EPSS
3.3%
EPSS pct
87th
Exploited
No known
Buffer 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.
Affected vendor
Huawei
Affected product
Usg2100 Firmware
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
Published
2016-09-22

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2016-6669

  • Confirm whether Huawei Usg2100 Firmware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2016-6669.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2016-6669

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2016-6669 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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