How severe is CVE-2017-3216?

CVE-2017-3216 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-2017-3216 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-3216?

CVE-2017-3216 primarily affects Greenpacket Ox350 Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-3216?

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-2017-3216 published?

CVE-2017-3216 was published on 2017-06-20 and last updated on 2026-06-17.

CVE-2017-3216

CVE-2017-3216 is a critical-severity vulnerability in Greenpacket Ox350 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-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Greenpacket Ox350 Firmware
Published: 2017-06-20
Last modified: 2026-06-17

Description

WiMAX routers based on the MediaTek SDK (libmtk) that use a custom httpd plugin are vulnerable to an authentication bypass allowing a remote, unauthenticated attacker to gain administrator access to the device by performing an administrator password change on the device via a crafted POST request.

Frequently asked questions

What is CVE-2017-3216?: WiMAX routers based on the MediaTek SDK (libmtk) that use a custom httpd plugin are vulnerable to an authentication bypass allowing a remote, unauthenticated attacker to gain administrator access to the device by performing an administrator password change on the device via a crafted POST request.
How severe is CVE-2017-3216?: CVE-2017-3216 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-2017-3216 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-3216?: CVE-2017-3216 primarily affects Greenpacket Ox350 Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-3216?: 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-2017-3216 published?: CVE-2017-3216 was published on 2017-06-20 and last updated on 2026-06-17.

References

Affected products (14)

cpe:2.3:o:greenpacket:ox350_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:huawei:bm2022_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:huawei:hes-309m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:huawei:hes-319m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:huawei:hes-319m2w_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:huawei:hes-339m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mada:soho_wireless_router_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:zte:ox-330p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:max218m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:max218m1w_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:max218mw_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:max308m_fimware:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:max318m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:max338m_firmware:-:*:*:*:*:*:*:*

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