What is the CVSS score of CVE-2025-8693?

CVE-2025-8693 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

Which versions of Ax7501 B1 Firmware are affected by CVE-2025-8693?

CVE-2025-8693 presents significant security risk, a OS command injection vulnerability rated CVSS 8.8.

How to fix or mitigate CVE-2025-8693?

Within 30 days: Identify all affected systems and apply vendor patches as part of regular patch cycle. Validate that input sanitization is in place for all user-controlled parameters.

Ax7501 B1 Firmware CVE-2025-8693

HIGH

OS Command Injection (CWE-78)

2025-11-18 security@zyxel.com.tw

Command Injection Zyxel Ax7501 B1 Firmware Dm4200 B0 Firmware Dx3300 T0 Firmware Dx3300 T1 Firmware Dx3301 T0 Firmware Dx4510 B1 Firmware Dx5401 B1 Firmware Ee3301 00 Firmware Ee5301 00 Firmware Ee6510 10 Firmware Emg3525 T50b Firmware Emg5523 T50b Firmware Ex3300 T0 Firmware Ex3300 T1 Firmware Ex3301 T0 Firmware Ex3500 T0 Firmware Ex3501 T0 Firmware Ex3510 B0 Firmware Ex3510 B1 Firmware Ex3600 T0 Firmware Ex5401 B1 Firmware Ex5510 B0 Firmware Ex5512 T0 Firmware Ex5601 T0 Firmware Ex5601 T1 Firmware Ex7501 B0 Firmware Ex7710 B0 Firmware Gm4100 B0 Firmware Pe3301 00 Firmware Pe5301 01 Firmware Pm3100 T0 Firmware Pm5100 T0 Firmware Pm7300 T0 Firmware Pm7500 00 Firmware Px3321 T1 Firmware Px5301 T0 Firmware Vmg3625 T50b Firmware Vmg4005 B50a Firmware Vmg4005 B60a Firmware Vmg8623 T50b Firmware We3300 00 Firmware Wx3100 T0 Firmware Wx3401 B1 Firmware Wx5600 T0 Firmware Wx5610 B0 Firmware Dx5401 B0 Firmware Ex5401 B0 Firmware Ex5501 B0 Firmware Emg5723 T50K Firmware Vmg3927 T50K Firmware Vmg4005 B50B Firmware Vmg8825 T50K Firmware Ax7501 B0 Firmware Wx3401 B0 Firmware

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:22 vuln.today

CVE Published

Nov 18, 2025 - 02:15 nvd

HIGH 8.8

DescriptionCVE.org

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.

AnalysisAI

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. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. 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 include: Zyxel Dm4200-B0 Firmware, Zyxel Dx3300-T0 Firmware, Zyxel Dx3300-T1 Firmware, Zyxel Dx3301-T0 Firmware, Zyxel Dx4510-B1 Firmware. Version information: version 5.50.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.