Buffer overflow in the Smart DNS functionality in the Huawei NGFW Module and Secospace USG6300, USG6500, USG6600, and USG9500 firewalls with software before V500R001C20SPC100 allows remote attackers to cause a denial of service or execute arbitrary code via a crafted packet, related to "illegitimate parameters."
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it requires adjacent network access but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 10 products from huawei, from huawei, from huawei and 7 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2016, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2016-05-23T19:59:11.197
2025-04-12T10:46:40.837
Deferred
CVSSv3.0: 7.5 (HIGH)
AV:A/AC:H/Au:N/C:C/I:C/A:C
3.2
10.0
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Hardware | huawei | usg9500 | - | No |
| Operating System | huawei | usg9500_firmware | v500r001c00 | Yes |
| Hardware | huawei | ngfw_module | - | No |
| Operating System | huawei | ngfw_module_firmware | v500r001c00 | Yes |
| Hardware | huawei | secospace_usg6300 | - | No |
| Operating System | huawei | secospace_usg6300_firmware | v500r001c00 | Yes |
| Hardware | huawei | secospace_usg6600 | - | No |
| Operating System | huawei | secospace_usg6600_firmware | v500r001c00 | Yes |
| Hardware | huawei | secospace_usg6500 | - | No |
| Operating System | huawei | secospace_usg6500_firmware | v500r001c00 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For huawei's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.