How severe is CVE-2023-33621?

CVE-2023-33621 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-33621 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-33621?

CVE-2023-33621 affects Gl-inet Gl-ar750s Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-33621?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-33621 published?

CVE-2023-33621 was published on 2023-06-13 and last updated on 2026-07-09.

CVE-2023-33621

CVE-2023-33621 is a medium-severity vulnerability in Gl-inet Gl-ar750s Firmware with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-294.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-294
Affected product: Gl-inet Gl-ar750s Firmware
Published: 2023-06-13
Last modified: 2026-07-09

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.

Frequently asked questions

What is CVE-2023-33621?: 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.
How severe is CVE-2023-33621?: CVE-2023-33621 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-33621 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-33621?: CVE-2023-33621 affects Gl-inet Gl-ar750s Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-33621?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-33621 published?: CVE-2023-33621 was published on 2023-06-13 and last updated on 2026-07-09.

References

https://justinapplegate.me/2023/glinet-CVE-2023-33621/

Affected products (1)

cpe:2.3:o:gl-inet:gl-ar750s_firmware:3.215:*:*:*:*:*:*:*

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