CVE-2023-33013

Name: CVE-2023-33013
Creator: NVD / NIST
Published: 2023-08-14T17:15:10.313+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.43%

Last modified Jun 17, 2026

CVE-2023-33013 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A post-authentication command injection vulnerability in the NTP feature of Zyxel NBG6604 firmware version V1.01(ABIR.1)C0 could allow an authenticated attacker to execute some OS commands remotely by sending a crafted HTTP request.. EPSS estimates a 1.43% chance of exploitation in the next 30 days.

Description

A post-authentication command injection vulnerability in the NTP feature of Zyxel NBG6604 firmware version V1.01(ABIR.1)C0 could allow an authenticated attacker to execute some OS commands remotely by sending a crafted HTTP request.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.43%

69.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Zyxel	Nbg6604 Firmware	1.01\(abir.1\)c0

References

Timeline

Published: Aug 14, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-33013?

How severe is CVE-2023-33013?

CVE-2023-33013 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.43% probability of exploitation in the next 30 days.

How do I fix CVE-2023-33013?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-33013?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST