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.

Published: 2018-03-09 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-8786 is rated Moderate Risk (58.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.83%). EPSS rose +1.61% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-8786

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.22% 1.83% +1.61%
2 2025-03-30 0.31% 0.22% -0.08%
3 2025-03-29 — 0.31% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-8786

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2016-8786

Affected software / configurations for CVE-2016-8786

Vendor Product Version Raw CPE
huawei s12700_firmware v200r005c00 cpe:2.3:o:huawei:s12700_firmware:v200r005c00:*:*:*:*:*:*:*
huawei s12700_firmware v200r006c00 cpe:2.3:o:huawei:s12700_firmware:v200r006c00:*:*:*:*:*:*:*
huawei s12700_firmware v200r007c00 cpe:2.3:o:huawei:s12700_firmware:v200r007c00:*:*:*:*:*:*:*
huawei s12700_firmware v200r008c00 cpe:2.3:o:huawei:s12700_firmware:v200r008c00:*:*:*:*:*:*:*
huawei s5700_firmware v200r006c00 cpe:2.3:o:huawei:s5700_firmware:v200r006c00:*:*:*:*:*:*:*
huawei s5700_firmware v200r007c00 cpe:2.3:o:huawei:s5700_firmware:v200r007c00:*:*:*:*:*:*:*
huawei s5700_firmware v200r008c00 cpe:2.3:o:huawei:s5700_firmware:v200r008c00:*:*:*:*:*:*:*
huawei s6700_firmware v200r008c00 cpe:2.3:o:huawei:s6700_firmware:v200r008c00:*:*:*:*:*:*:*
huawei s7700_firmware v200r001c00 cpe:2.3:o:huawei:s7700_firmware:v200r001c00:*:*:*:*:*:*:*
huawei s7700_firmware v200r002c00 cpe:2.3:o:huawei:s7700_firmware:v200r002c00:*:*:*:*:*:*:*
huawei s7700_firmware v200r003c00 cpe:2.3:o:huawei:s7700_firmware:v200r003c00:*:*:*:*:*:*:*
huawei s7700_firmware v200r005c00 cpe:2.3:o:huawei:s7700_firmware:v200r005c00:*:*:*:*:*:*:*
huawei s7700_firmware v200r006c00 cpe:2.3:o:huawei:s7700_firmware:v200r006c00:*:*:*:*:*:*:*
huawei s7700_firmware v200r007c00 cpe:2.3:o:huawei:s7700_firmware:v200r007c00:*:*:*:*:*:*:*
huawei s7700_firmware v200r008c00 cpe:2.3:o:huawei:s7700_firmware:v200r008c00:*:*:*:*:*:*:*
huawei s9700_firmware v200r001c00 cpe:2.3:o:huawei:s9700_firmware:v200r001c00:*:*:*:*:*:*:*
huawei s9700_firmware v200r002c00 cpe:2.3:o:huawei:s9700_firmware:v200r002c00:*:*:*:*:*:*:*
huawei s9700_firmware v200r003c00 cpe:2.3:o:huawei:s9700_firmware:v200r003c00:*:*:*:*:*:*:*
huawei s9700_firmware v200r005c00 cpe:2.3:o:huawei:s9700_firmware:v200r005c00:*:*:*:*:*:*:*
huawei s9700_firmware v200r006c00 cpe:2.3:o:huawei:s9700_firmware:v200r006c00:*:*:*:*:*:*:*
huawei s9700_firmware v200r007c00 cpe:2.3:o:huawei:s9700_firmware:v200r007c00:*:*:*:*:*:*:*
huawei s9700_firmware v200r008c00 cpe:2.3:o:huawei:s9700_firmware:v200r008c00:*:*:*:*:*:*:*

References for CVE-2016-8786

cvelogic Threat Intelligence