What is CVE-2016-6838?

CVE-2016-6838 is a high-severity vulnerability in Huawei Ch121 V3 Server, classified under Information Disclosure. CVSS score: 7.5/10. Published 2016-09-07.

How severe is CVE-2016-6838?

High severity. CVSS v3 base score is 7.5 out of 10.

Information disclosure in Huawei Ch121 V3 Server

CVE-2016-6838

Huawei X6800 and XH620 V3 servers with software before V100R003C00SPC606, RH1288 V3 servers with software before V100R003C00SPC613, RH2288 V3 servers with software before V100R003C00SPC617, CH140 V3 and CH226 V3 servers with software before V100R001C00SPC122, CH220 V3 servers with software before V100R001C00SPC201, and CH121 V3 and CH222 V3 servers with software before V100R001C00SPC202 might allow remote attackers to decrypt encrypted data and consequently obtain sensitive information by leveraging selection of an insecure SSH encryption algorithm.

Vulnerability class: Information Disclosure

Published 2016-09-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.010 (60.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Huawei Ch121 V3 Server
Huawei Ch121 V3 Server Firmware — versions v100r001c00
Huawei Ch140 V3 Server
Huawei Ch140 V3 Server Firmware — versions v100r001c00
Huawei Ch220 V3 Server
Huawei Ch220 V3 Server Firmware — versions v100r001c00
Huawei Ch222 V3 Server
Huawei Ch222 V3 Server Firmware — versions v100r001c00
Huawei Ch226 V3 Server
Huawei Ch226 V3 Server Firmware — versions v100r001c00

Weakness classification (CWE)

References

www.securityfocus.com/bid/92503 (VDB Entry, Third Party Advisory, vdb-entry)
www.huawei.com/en/psirt/security-advisories/huawei-sa-20160817-02-server-en (Vendor Advisory)

Frequently asked questions

What is CVE-2016-6838?: CVE-2016-6838 is a high-severity vulnerability in Huawei Ch121 V3 Server, classified under Information Disclosure. CVSS score: 7.5/10. Published 2016-09-07.
How severe is CVE-2016-6838?: High severity. CVSS v3 base score is 7.5 out of 10.