CVE-2016-6670

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Summary

CVECVE-2016-6670
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-09-07 19:28:13 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionHuawei 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.

Risk And Classification

Primary CVSS: v3.0 5.3 MEDIUM from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.000530000 probability, percentile 0.163660000 (date 2026-05-06)

Problem Types: CWE-200 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary5.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Huawei S12700 - All All All
Hardware Huawei S7700 - All All All
Operating System Huawei S7700 Firmware v200r003c00 All All All
Operating System Huawei S7700 Firmware v200r005c00 All All All
Hardware Huawei S9300 - All All All
Operating System Huawei S9300 Firmware v200r003c00 All All All
Operating System Huawei S9300 Firmware v200r005c00 All All All
Hardware Huawei S9700 - All All All
Operating System Huawei S9700 Firmware v200r003c00 All All All
Operating System Huawei S9700 Firmware v200r005c00 All All All
Operating System Huawei Firmware S12700 v200r005c00 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
* af854a3a-2127-422b-91ae-364da2661108 www.huawei.com Mitigation, Vendor Advisory
Multiple Huawei Products CVE-2016-6670 Insecure Random Number Generation Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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