How severe is CVE-2016-8786?

CVE-2016-8786 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-2016-8786 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-8786?

CVE-2016-8786 primarily affects Huawei S12700 Firmware. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-8786?

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-2016-8786 published?

CVE-2016-8786 was published on 2018-03-09 and last updated on 2026-06-17.

CVE-2016-8786

CVE-2016-8786 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: 7.8
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Huawei S12700 Firmware
Published: 2018-03-09
Last modified: 2026-06-17

Description

Huawei S12700 V200R005C00, V200R006C00, V200R007C00, V200R008C00, S5700 V200R006C00, V200R007C00, V200R008C00, S6700 V200R008C00, S7700 V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00, S9700 V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00 have a denial of service (DoS) vulnerability. Due to the lack of input validation, a remote attacker may craft a malformed Resource Reservation Protocol (RSVP) packet and send it to the device, causing a few buffer overflows and occasional device restart.

Frequently asked questions

What is CVE-2016-8786?: Huawei S12700 V200R005C00, V200R006C00, V200R007C00, V200R008C00, S5700 V200R006C00, V200R007C00, V200R008C00, S6700 V200R008C00, S7700 V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00, S9700 V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00 have a denial of service (DoS) vulnerability. Due to the lack of input validation, a remote attacker may craft a malformed Resource Reservation Protocol (RSVP) packet and send it to the device, causing a few buffer overflows and occasional device restart.
How severe is CVE-2016-8786?: CVE-2016-8786 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-2016-8786 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-8786?: CVE-2016-8786 primarily affects Huawei S12700 Firmware. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-8786?: 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-2016-8786 published?: CVE-2016-8786 was published on 2018-03-09 and last updated on 2026-06-17.

References

Affected products (22)

cpe:2.3:o:huawei:s12700_firmware:v200r005c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s12700_firmware:v200r006c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s12700_firmware:v200r007c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s12700_firmware:v200r008c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r006c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r007c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s5700_firmware:v200r008c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s6700_firmware:v200r008c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s7700_firmware:v200r001c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s7700_firmware:v200r002c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s7700_firmware:v200r003c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s7700_firmware:v200r005c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s7700_firmware:v200r006c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s7700_firmware:v200r007c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s7700_firmware:v200r008c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9700_firmware:v200r001c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9700_firmware:v200r002c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9700_firmware:v200r003c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9700_firmware:v200r005c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9700_firmware:v200r006c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9700_firmware:v200r007c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:s9700_firmware:v200r008c00:*:*:*:*:*:*:*

More vulnerabilities in Huawei S12700 Firmware

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CVE-2017-17300 — High (CVSS 7.5): Huawei S12700 V200R008C00, V200R009C00, S5700 V200R007C00, V200R008C00, V200R009C00, S6700 V200R008C00, V200R009C00,…

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