How severe is CVE-2016-6838?

CVE-2016-6838 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2016-6838 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-6838?

CVE-2016-6838 primarily affects Huawei Rh1288 V3 Server Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-6838?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-6838 published?

CVE-2016-6838 was published on 2016-09-07 and last updated on 2026-06-17.

CVE-2016-6838

CVE-2016-6838 is a high-severity vulnerability in Huawei Rh1288 V3 Server Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Huawei Rh1288 V3 Server Firmware
Published: 2016-09-07
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2016-6838?: CVE-2016-6838 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2016-6838 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-6838?: CVE-2016-6838 primarily affects Huawei Rh1288 V3 Server Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-6838?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-6838 published?: CVE-2016-6838 was published on 2016-09-07 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:o:huawei:rh1288_v3_server_firmware:v100r003c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:rh2288_v3_server_firmware:v100r003c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:x6800_v3_server_firmware:v100r003c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:xh620_v3_server_firmware:v100r003c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ch121_v3_server_firmware:v100r001c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ch140_v3_server_firmware:v100r001c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ch220_v3_server_firmware:v100r001c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ch222_v3_server_firmware:v100r001c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ch226_v3_server_firmware:v100r001c00:*:*:*:*:*:*:*

More vulnerabilities in Huawei Rh1288 V3 Server Firmware

CVE-2016-6825 — Critical (CVSS 9.8): Huawei XH620 V3, XH622 V3, and XH628 V3 servers with software before V100R003C00SPC610, RH1288 V3 servers with software…
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