SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-8693

A post-authentication command injection vulnerability in the "priv" parameter of Zyxel DX3300-T0 firmware version 5.50(ABVY.6.3)C0 and earlier could allow an authenticated attacker to execute operating system (OS) commands on an affected device.

HIGH 8.8EPSS 1.07%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.07%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A post-authentication command injection vulnerability in the "priv" parameter of Zyxel DX3300-T0 firmware version 5.50(ABVY.6.3)C0 and earlier could allow an authenticated attacker to execute operating system (OS) commands on an affected device.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
1.07% probability · 63th percentile
CISA KEV
Not listed
Weakness
CWE-78
Affected
zyxel/dm4200-b0 firmware · zyxel/dx3300-t0 firmware · zyxel/dx3300-t1 firmware · zyxel/dx3301-t0 firmware · zyxel/dx4510-b1 firmware · zyxel/dx5401-b0 firmware · zyxel/dx5401-b1 firmware · zyxel/ee3301-00 firmware · zyxel/ee5301-00 firmware · zyxel/ee6510-10 firmware · zyxel/ex3300-t0 firmware · zyxel/ex3300-t1 firmware · zyxel/ex3301-t0 firmware · zyxel/ex3500-t0 firmware · zyxel/ex3501-t0 firmware · zyxel/ex3510-b0 firmware · zyxel/ex3510-b1 firmware · zyxel/ex3600-t0 firmware · zyxel/ex5401-b0 firmware · zyxel/ex5401-b1 firmware · +34 more
Source
security@zyxel.com.tw

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.