How severe is CVE-2016-2404?

CVE-2016-2404 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-2404 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-2404?

CVE-2016-2404 primarily affects Huawei S5700 Firmware. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-2404?

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-2016-2404 published?

CVE-2016-2404 was published on 2017-04-02 and last updated on 2026-06-17.

CVE-2016-2404

CVE-2016-2404 is a high-severity vulnerability in Huawei S5700 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-264.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 6.0
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Huawei S5700 Firmware
Published: 2017-04-02
Last modified: 2026-06-17

Description

Huawei switches S5700, S6700, S7700, S9700 with software V200R001C00SPC300, V200R002C00SPC100, V200R003C00SPC300, V200R005C00SPC500, V200R006C00; S12700 with software V200R005C00SPC500, V200R006C00; ACU2 with software V200R005C00SPC500, V200R006C00 have a permission control vulnerability. If a switch enables Authentication, Authorization, and Accounting (AAA) for permission control and user permissions are not appropriate, AAA users may obtain the virtual type terminal (VTY) access permission, resulting in privilege escalation.

Frequently asked questions

What is CVE-2016-2404?: Huawei switches S5700, S6700, S7700, S9700 with software V200R001C00SPC300, V200R002C00SPC100, V200R003C00SPC300, V200R005C00SPC500, V200R006C00; S12700 with software V200R005C00SPC500, V200R006C00; ACU2 with software V200R005C00SPC500, V200R006C00 have a permission control vulnerability. If a switch enables Authentication, Authorization, and Accounting (AAA) for permission control and user permissions are not appropriate, AAA users may obtain the virtual type terminal (VTY) access permission, resulting in privilege escalation.
How severe is CVE-2016-2404?: CVE-2016-2404 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-2404 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-2404?: CVE-2016-2404 primarily affects Huawei S5700 Firmware. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-2404?: 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-2016-2404 published?: CVE-2016-2404 was published on 2017-04-02 and last updated on 2026-06-17.

References

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160217-01-switch-en

Affected products (24)

cpe:2.3:o:huawei:s5700_firmware:v200r001c00spc300:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r002c00spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r003c00spc300:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r005c00spc500:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r006c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6700_firmware:v200r001c00spc300:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6700_firmware:v200r002c00spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6700_firmware:v200r003c00spc300:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6700_firmware:v200r005c00spc500:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6700_firmware:v200r006c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s7700_firmware:v200r001c00spc300:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s7700_firmware:v200r002c00spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s7700_firmware:v200r003c00spc300:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s7700_firmware:v200r005c00spc500:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s7700_firmware:v200r006c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9700_firmware:v200r001c00spc300:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9700_firmware:v200r002c00spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9700_firmware:v200r003c00spc300:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9700_firmware:v200r005c00spc500:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9700_firmware:v200r006c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s12700_firmware:v200r005c00spc500:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s12700_firmware:v200r006c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:acu2_firmware:v200r005c00spc500:*:*:*:*:*:*:*
cpe:2.3:o:huawei:acu2_firmware:v200r006c00:*:*:*:*:*:*:*

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