CVE-2016-6669
CVE-2016-6669 is a high-severity vulnerability in Huawei Usg2100 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 7.1
- EPSS exploit prediction: 3% (87th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Huawei Usg2100 Firmware
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2016-6669?
- 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.
- How severe is CVE-2016-6669?
- CVE-2016-6669 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2016-6669 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2016-6669?
- CVE-2016-6669 primarily affects Huawei Usg2100 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2016-6669?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2016-6669 published?
- CVE-2016-6669 was published on 2016-09-22 and last updated on 2026-06-17.
References
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160810-01-usg-en
- http://www.securityfocus.com/bid/92441
Affected products (4)
- cpe:2.3:o:huawei:usg2100_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:usg2200_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:usg5100_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:usg5500_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Huawei Usg2100 Firmware
- CVE-2014-9137 — High (CVSS 8.8): Huawei USG9500 with software V200R001C01SPC800 and earlier versions, V300R001C00; USG2100 with software…
- CVE-2014-9136 — High (CVSS 8.8): Huawei FusionManager with software V100R002C03 and V100R003C00 could allow an unauthenticated, remote attacker to…
All CVEs affecting Huawei Usg2100 Firmware →
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