SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

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…

CRITICAL 9.8EPSS 5.17%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (5.17%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
5.17% probability · 92th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-306
Affected
greenpacket/ox350 firmware · huawei/bm2022 firmware · huawei/hes-309m firmware · huawei/hes-319m firmware · huawei/hes-319m2w firmware · huawei/hes-339m firmware · mada/soho wireless router firmware · zte/ox-330p firmware · zyxel/max218m firmware · zyxel/max218m1w firmware · zyxel/max218mw firmware · zyxel/max308m fimware · zyxel/max318m firmware · zyxel/max338m firmware
Source
cret@cert.org
EPSS trend
0%5%10%27 October 2026: 5.17%27 October 202627 October 2026

EPSS 5.2% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.