CVE-2025-8693

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-11-18 · updated 2026-10-18
Weakness: CWE-78

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.

Affected products

Zyxel AX7501-B0 firmware: through 5.17\(abpc.6.1\)c0
Zyxel AX7501-B1 firmware: through 5.17\(abpc.6.1\)c0
Zyxel Dm4200-B0 Firmware: through 5.17\(acbs.1.3\)c0
Zyxel DX3300-T0 firmware: through 5.50\(abvy.6.3\)c0
Zyxel DX3300-T1 firmware: through 5.50\(abvy.6.3\)c0
Zyxel DX3301-T0 firmware: through 5.50\(abvy.6.3\)c0
Zyxel Dx4510-B1 Firmware: through 5.17\(abyl.9\)c0
Zyxel DX5401-B0 firmware: through 5.17\(abyo.7\)b2
Zyxel Dx5401-B1 Firmware: through 5.17\(abyo.7\)b2
Zyxel Ee3301-00 Firmware: through 5.63\(acmu.1.1\)c0
Zyxel Ee5301-00 Firmware: through 5.63\(acld.1.1\)c0
Zyxel Ee6510-10 Firmware: through 5.19\(acjq.3\)c0
Zyxel Emg3525-T50B Firmware: through 5.50\(abpm.9.5\)c0
Zyxel Emg5523-T50B Firmware: through 5.50\(abpm.9.5\)c0
Zyxel Emg5723-T50K Firmware: through 5.50\(abom.8.6\)c0
Zyxel Ex3300-T0 Firmware: through 5.50\(abvy.6.3\)c0; through 5.50\(acdi.2.1\)c0
Zyxel Ex3300-T1 Firmware: through 5.50\(abvy.6.3\)c0
Zyxel EX3301-T0 firmware: through 5.50\(abvy.6.3\)c0
Zyxel Ex3500-T0 Firmware: through 5.44\(achr.4\)c0
Zyxel EX3501-T0 firmware: through 5.44\(achr.4\)c0
Zyxel EX3510-B0 firmware: through 5.17\(abup.15\)c0
Zyxel Ex3510-B1 Firmware: through 5.17\(abup.15\)c0
Zyxel Ex3600-T0 Firmware: through 5.70\(acif.1.2\)c0
Zyxel Ex5401-B0 Firmware: through 5.17\(abyo.7\)b2
Zyxel Ex5401-B1 Firmware: through 5.17\(abyo.7\)b2
Zyxel Ex5501-B0 Firmware: through 5.17\(abry.5.5\)c0
Zyxel Ex5510-B0 Firmware: through 5.17\(abqx.10\)c0
Zyxel Ex5512-T0 Firmware: through 5.70\(aceg.5\)c0
Zyxel Ex5601-T0 Firmware: through 5.70\(acdz.4.1\)c0
Zyxel EX5601-T1 firmware: through 5.70\(acdz.4.1\)c0

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-uncontrolled-resource-consumption-and-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-security-routers-and-wireless-extenders-11-18-2025

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