CVE-2023-22920

Name: CVE-2023-22920
Creator: NVD / NIST
Published: 2023-02-21T16:15:11.743+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.84%

Last modified Jun 17, 2026

CVE-2023-22920 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A security misconfiguration vulnerability exists in the Zyxel LTE3316-M604 firmware version V2.00(ABMP.6)C0 due to a factory default misconfiguration intended for testing purposes. A remote attacker could leverage this vulnerability to access an affected device using Telnet.. EPSS estimates a 0.84% chance of exploitation in the next 30 days.

Description

A security misconfiguration vulnerability exists in the Zyxel LTE3316-M604 firmware version V2.00(ABMP.6)C0 due to a factory default misconfiguration intended for testing purposes. A remote attacker could leverage this vulnerability to access an affected device using Telnet.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.84%

53.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Zyxel	Lte3202-M437 Firmware	1.00\(abwf.1\)c0
Zyxel	Lte3316-M604 Firmware	2.00\(abmp.6\)c0

References

Timeline

Published: Feb 21, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-22920?

How severe is CVE-2023-22920?

CVE-2023-22920 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.84% probability of exploitation in the next 30 days.

How do I fix CVE-2023-22920?

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-2023-22920?

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

Scan your code now

Source: NVD / NIST