CVE-2023-33621

Name: CVE-2023-33621
Creator: NVD / NIST
Published: 2023-06-13T16:15:13.027+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 0.95%

Last modified Jun 17, 2026

CVE-2023-33621 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. GL.iNET GL-AR750S-Ext firmware v3.215 inserts the admin authentication token into a GET request when the OpenVPN Server config file is downloaded. The token is then left in the browser history or access logs, potentially allowing attackers to bypass authentication via session replay.. EPSS estimates a 0.95% chance of exploitation in the next 30 days.

Description

GL.iNET GL-AR750S-Ext firmware v3.215 inserts the admin authentication token into a GET request when the OpenVPN Server config file is downloaded. The token is then left in the browser history or access logs, potentially allowing attackers to bypass authentication via session replay.

Metrics

CVSS 3.1

5.9/10

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

EPSS Probability

0.95%

56.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-294

Affected Software

Vendor	Product	Versions
Gl-Inet	Gl-Ar750s Firmware	3.215

References

http://gl-ar750s-ext.comBroken Link
http://glinet.comBroken Link
https://justinapplegate.me/2023/glinet-CVE-2023-33621/Exploit, Third Party Advisory
http://gl-ar750s-ext.comBroken Link
http://glinet.comBroken Link
https://justinapplegate.me/2023/glinet-CVE-2023-33621/Exploit, Third Party Advisory

Timeline

Published: Jun 13, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-33621?

How severe is CVE-2023-33621?

CVE-2023-33621 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.95% probability of exploitation in the next 30 days.

How do I fix CVE-2023-33621?

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-2023-33621?

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

Scan your code now

Source: NVD / NIST