Information disclosure in Huawei S12700
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.008 (57.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Huawei S12700
- Huawei S7700
- Huawei S7700 Firmware — versions v200r003c00, v200r005c00
- Huawei S9300
- Huawei S9300 Firmware — versions v200r003c00, v200r005c00
- Huawei S9700
- Huawei S9700 Firmware — versions v200r003c00, v200r005c00
- Huawei Firmware S12700 — versions v200r005c00
Weakness classification (CWE)
References
- www.huawei.com/en/psirt/security-advisories/huawei-sa-20160810-01-certificate-en (Mitigation, Vendor Advisory)
- www.securityfocus.com/bid/92438 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2016-6670?
- CVE-2016-6670 is a medium-severity vulnerability in Huawei S12700, classified under Information Disclosure. CVSS score: 5.3/10. Published 2016-09-07.
- How severe is CVE-2016-6670?
- Medium severity. CVSS v3 base score is 5.3 out of 10.