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Vulnerabilities

Vulnerability · 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 authentic…

Published Nov 18, 2025 · catalog updated Oct 18, 2026 · dm4200-b0 firmware

Open the advisory

Exploitation likelihood is not on this record for CVE-2025-8693. A missing EPSS score is not a low risk. Compare dm4200-b0 firmware with the linked advisory before you change production.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
High8.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
Remediation
Advisory link
Affected products
cpe zyxel/dm4200-b0 firmware · cpe zyxel/dx3300-t0 firmware · cpe zyxel/dx3300-t1 firmware · cpe zyxel/dx3301-t0 firmware · cpe zyxel/dx4510-b1 firmware · cpe zyxel/dx5401-b0 firmware

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe zyxel/dm4200-b0 firmwareversion unspecified
  • cpe zyxel/dx3300-t0 firmwareversion unspecified
  • cpe zyxel/dx3300-t1 firmwareversion unspecified
  • cpe zyxel/dx3301-t0 firmwareversion unspecified
  • cpe zyxel/dx4510-b1 firmwareversion unspecified
  • cpe zyxel/dx5401-b0 firmwareversion unspecified
  • cpe zyxel/dx5401-b1 firmwareversion unspecified
  • cpe zyxel/ee3301-00 firmwareversion unspecified
  • cpe zyxel/ee5301-00 firmwareversion unspecified
  • cpe zyxel/ee6510-10 firmwareversion unspecified
  • cpe zyxel/ex3300-t0 firmwareversion unspecified

How to fix CVE-2025-8693

  • Recommended remediation

    A patch or advisory reference is linked. Open the original publisher for availability by product version.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for CVE-2025-8693. A missing EPSS score is not a low risk. Compare dm4200-b0 firmware with the linked advisory before you change production.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-78: OS Command Injection. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 18, 2025 · NIST NVD

    Detected

    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.

  2. Oct 18, 2026 · NIST NVD

    Updated

    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.

Sources

  • NIST NVDVulnerability recordCVE-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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.