Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2016-6670

Huawei S7700, S9300, S9700, and S12700 devices with software before V200R008C00SPC500 use random numbers with insufficient entropy to generate self-signed certificates, which makes it easier for remote attackers to discover private keys by leveraging knowledge of a certificate.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.3, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts limited data confidentiality, for affected systems. Impacting 8 products from huawei_firmware, from huawei, from huawei and 5 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

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.

Published

2016-09-07T19:28:13.380

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 5.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-200

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	huawei_firmware	s12700	v200r005c00	Yes
Hardware	huawei	s12700	-	No
Operating System	huawei	s9700_firmware	v200r003c00	Yes
Operating System	huawei	s9700_firmware	v200r005c00	Yes
Hardware	huawei	s9700	-	No
Operating System	huawei	s7700_firmware	v200r003c00	Yes
Operating System	huawei	s7700_firmware	v200r005c00	Yes
Hardware	huawei	s7700	-	No
Operating System	huawei	s9300_firmware	v200r003c00	Yes
Operating System	huawei	s9300_firmware	v200r005c00	Yes
Hardware	huawei	s9300	-	No

References

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160810-01-certificate-en Mitigation, Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/92438 Third Party Advisory, VDB Entry ([email protected])
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160810-01-certificate-en Mitigation, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/92438 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

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_firmware'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.