How severe is CVE-2016-4087?

CVE-2016-4087 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-4087 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4087?

CVE-2016-4087 primarily affects Huawei S12700 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-4087?

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-2016-4087 published?

CVE-2016-4087 was published on 2016-05-23 and last updated on 2026-06-17.

CVE-2016-4087

CVE-2016-4087 is a high-severity vulnerability in Huawei S12700 Firmware with a CVSS 3.x base score of 8.1. 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-20.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 5.1
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Huawei S12700 Firmware
Published: 2016-05-23
Last modified: 2026-06-17

Description

Huawei S12700 switches with software before V200R008C00SPC500 and S5700 switches with software before V200R005SPH010, when the debug switch is enabled, allows remote attackers to cause a denial of service or execute arbitrary code via crafted DNS packets.

Frequently asked questions

What is CVE-2016-4087?: Huawei S12700 switches with software before V200R008C00SPC500 and S5700 switches with software before V200R005SPH010, when the debug switch is enabled, allows remote attackers to cause a denial of service or execute arbitrary code via crafted DNS packets.
How severe is CVE-2016-4087?: CVE-2016-4087 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-4087 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4087?: CVE-2016-4087 primarily affects Huawei S12700 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-4087?: 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-2016-4087 published?: CVE-2016-4087 was published on 2016-05-23 and last updated on 2026-06-17.

References

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160427-01-dns-en

Affected products (5)

cpe:2.3:o:huawei:s12700_firmware:v200r005c00spc300:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r001c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r002c00spc100:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r003c00spc300:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r005c00:*:*:*:*:*:*:*

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