How severe is CVE-2016-8773?

CVE-2016-8773 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 none, integrity none, and availability high.

Is CVE-2016-8773 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-8773?

CVE-2016-8773 primarily affects Huawei S12700 Firmware. In total, 37 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-8773?

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-2016-8773 published?

CVE-2016-8773 was published on 2017-04-02 and last updated on 2026-06-17.

CVE-2016-8773

CVE-2016-8773 is a high-severity vulnerability in Huawei S12700 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Huawei S12700 Firmware
Published: 2017-04-02
Last modified: 2026-06-17

Description

Huawei S5300 with software V200R003C00, V200R007C00, V200R008C00, V200R009C00; S5700 with software V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R005C03, V200R007C00, V200R008C00, V200R009C00; S6300 with software V200R003C00, V200R005C00, V200R008C00, V200R009C00; S6700 with software V200R001C00, V200R001C01, V200R002C00, V200R003C00, V200R005C00, V200R008C00, V200R009C00; S7700 with software V200R007C00, V200R008C00, V200R009C00; S9300 with software V200R007C00, V200R008C00, V200R009C00; S9700 with software V200R007C00, V200R008C00, V200R009C00; and S12700 with software V200R007C00, V200R007C01, V200R008C00, V200R009C00 allow the attacker to cause a denial of service condition by sending malformed MPLS packets.

Frequently asked questions

What is CVE-2016-8773?: Huawei S5300 with software V200R003C00, V200R007C00, V200R008C00, V200R009C00; S5700 with software V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R005C03, V200R007C00, V200R008C00, V200R009C00; S6300 with software V200R003C00, V200R005C00, V200R008C00, V200R009C00; S6700 with software V200R001C00, V200R001C01, V200R002C00, V200R003C00, V200R005C00, V200R008C00, V200R009C00; S7700 with software V200R007C00, V200R008C00, V200R009C00; S9300 with software V200R007C00, V200R008C00, V200R009C00; S9700 with software V200R007C00, V200R008C00, V200R009C00; and S12700 with software V200R007C00, V200R007C01, V200R008C00, V200R009C00 allow the attacker to cause a denial of service condition by sending malformed MPLS packets.
How severe is CVE-2016-8773?: CVE-2016-8773 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 none, integrity none, and availability high.
Is CVE-2016-8773 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-8773?: CVE-2016-8773 primarily affects Huawei S12700 Firmware. In total, 37 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-8773?: 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-2016-8773 published?: CVE-2016-8773 was published on 2017-04-02 and last updated on 2026-06-17.

References

Affected products (37)

cpe:2.3:o:huawei:s12700_firmware:v200r007c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s12700_firmware:v200r007c01:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s12700_firmware:v200r008c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s12700_firmware:v200r009c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5300_firmware:v200r003c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5300_firmware:v200r007c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5300_firmware:v200r008c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5300_firmware:v200r009c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r001c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r002c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r003c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r005c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r005c03:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r007c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r008c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r009c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6300_firmware:v200r003c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6300_firmware:v200r005c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6300_firmware:v200r008c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6300_firmware:v200r009c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6700_firmware:v200r001c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6700_firmware:v200r001c01:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6700_firmware:v200r002c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6700_firmware:v200r003c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6700_firmware:v200r005c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6700_firmware:v200r007c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6700_firmware:v200r008c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6700_firmware:v200r009c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s7700_firmware:v200r007c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s7700_firmware:v200r008c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s7700_firmware:v200r009c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9300_firmware:v200r007c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9300_firmware:v200r008c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9300_firmware:v200r009c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9700_firmware:v200r007c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9700_firmware:v200r008c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9700_firmware:v200r009c00:*:*:*:*:*:*:*

More vulnerabilities in Huawei S12700 Firmware

CVE-2016-4087 — High (CVSS 8.1): Huawei S12700 switches with software before V200R008C00SPC500 and S5700 switches with software before V200R005SPH010,…
CVE-2021-37129 — High (CVSS 7.5): There is an out of bounds write vulnerability in some Huawei products. The vulnerability is caused by a function of a…
CVE-2021-22357 — High (CVSS 7.5): There is a denial of service vulnerability in Huawei products. A module cannot deal with specific messages due to…
CVE-2019-19397 — High (CVSS 7.5): There is a weak algorithm vulnerability in some Huawei products. The affected products use weak algorithms by default.…
CVE-2019-5285 — High (CVSS 7.5): Some Huawei S series switches have a DoS vulnerability. An unauthenticated remote attacker can send crafted packets to…
CVE-2016-8786 — High (CVSS 7.5): Huawei S12700 V200R005C00, V200R006C00, V200R007C00, V200R008C00, S5700 V200R006C00, V200R007C00, V200R008C00, S6700…

All CVEs affecting Huawei S12700 Firmware →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →