CVE-2023-35140

Name: CVE-2023-35140
Creator: NVD / NIST
Published: 2023-11-07T05:15:12.077+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.17%

Last modified Jun 17, 2026

CVE-2023-35140 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. The improper privilege management vulnerability in the Zyxel GS1900-24EP switch firmware version V2.70(ABTO.5) could allow an authenticated local user with read-only access to modify system settings on a vulnerable device.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

The improper privilege management vulnerability in the Zyxel GS1900-24EP switch firmware version V2.70(ABTO.5) could allow an authenticated local user with read-only access to modify system settings on a vulnerable device.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.17%

6.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-269

Affected Software

Vendor	Product	Versions
Zyxel	Gs1900-48hpv2 Firmware	<= 2.70\(abtq.5\)
Zyxel	Gs1900-48 Firmware	<= 2.70\(aahn.5\)
Zyxel	Gs1900-24hpv2 Firmware	<= 2.70\(abtp.5\)
Zyxel	Gs1900-24ep Firmware	<= 2.70\(abto.5\)
Zyxel	Gs1900-24e Firmware	<= 2.70\(aahk.5\)
Zyxel	Gs1900-24 Firmware	<= 2.70\(aahl.5\)
Zyxel	Gs1900-16 Firmware	<= 2.70\(aahj.5\)
Zyxel	Gs1900-10hp Firmware	<= 2.70\(aazi.5\)
Zyxel	Gs1900-8hp Firmware	<= 2.70\(aahi.5\)
Zyxel	Gs1900-8 Firmware	<= 2.70\(aahh.5\)

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-improper-privilege-management-vulnerability-in-gs1900-series-switchesNot Applicable, Vendor Advisory
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-improper-privilege-management-vulnerability-in-gs1900-series-switchesNot Applicable, Vendor Advisory

Timeline

Published: Nov 7, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-35140?

How severe is CVE-2023-35140?

CVE-2023-35140 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.

How do I fix CVE-2023-35140?

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-2023-35140?

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

Scan your code now

Source: NVD / NIST