How severe is CVE-2016-6206?

CVE-2016-6206 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-6206 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-6206?

CVE-2016-6206 primarily affects Huawei Ar3200 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-2016-6206?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2016-6206 published?

CVE-2016-6206 was published on 2017-03-24 and last updated on 2026-06-17.

CVE-2016-6206

CVE-2016-6206 is a critical-severity vulnerability in Huawei Ar3200 Firmware with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Huawei Ar3200 Firmware
Published: 2017-03-24
Last modified: 2026-06-17

Description

Huawei AR3200 routers with software before V200R007C00SPC600 allow remote attackers to cause a denial of service or execute arbitrary code via a crafted packet.

Frequently asked questions

What is CVE-2016-6206?: Huawei AR3200 routers with software before V200R007C00SPC600 allow remote attackers to cause a denial of service or execute arbitrary code via a crafted packet.
How severe is CVE-2016-6206?: CVE-2016-6206 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-6206 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-6206?: CVE-2016-6206 primarily affects Huawei Ar3200 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-2016-6206?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2016-6206 published?: CVE-2016-6206 was published on 2017-03-24 and last updated on 2026-06-17.

References

Affected products (24)

cpe:2.3:o:huawei:ar3200_firmware:v200r001c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r001c01:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r002c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r002c01:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r002c02:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r002c05:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r003c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r003c01:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r003c05:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r005c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r005c10:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r005c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r005c21:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r005c30:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r005c31:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r005c32:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r006c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r006c10:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r006c11:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r006c12:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r006c13:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r006c15:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r006c16:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ar3200_firmware:v200r006c17:*:*:*:*:*:*:*

More vulnerabilities in Huawei Ar3200 Firmware

CVE-2020-9068 — Critical (CVSS 9.8): Huawei AR3200 products with versions of V200R007C00SPC900, V200R007C00SPCa00, V200R007C00SPCb00, V200R007C00SPCc00,…
CVE-2017-17301 — Critical (CVSS 9.8): Huawei AR120-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, AR1200 V200R005C20, V200R005C32, V200R006C10,…
CVE-2019-19417 — High (CVSS 7.5): The SIP module of some Huawei products have a denial of service (DoS) vulnerability. A remote attacker could exploit…
CVE-2019-19416 — High (CVSS 7.5): The SIP module of some Huawei products have a denial of service (DoS) vulnerability. A remote attacker could exploit…
CVE-2019-19415 — High (CVSS 7.5): The SIP module of some Huawei products have a denial of service (DoS) vulnerability. A remote attacker could exploit…
CVE-2019-5304 — High (CVSS 7.5): Some Huawei products have a buffer error vulnerability. An unauthenticated, remote attacker could send specific MPLS…

All CVEs affecting Huawei Ar3200 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 →