What is CVE-2023-33620?

CVE-2023-33620 is a medium-severity vulnerability in Gl-Inet Gl-Ar750s, classified under Insufficiently Protected Credentials. CVSS score: 5.9/10. Published 2023-06-13.

How severe is CVE-2023-33620?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Gl-Inet Gl-Ar750s

CVE-2023-33620

GL.iNET GL-AR750S-Ext firmware v3.215 uses an insecure protocol in its communications which allows attackers to eavesdrop via a man-in-the-middle attack.

Published 2023-06-13 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (42.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Gl-Inet Gl-Ar750s
Gl-Inet Gl-Ar750s Firmware — versions 3.215

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

af854a3a-2127-422b-91ae-364da2661108 (Product)
af854a3a-2127-422b-91ae-364da2661108 (Broken Link)
justinapplegate.me/2023/glinet-CVE-2023-33620/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-33620?: CVE-2023-33620 is a medium-severity vulnerability in Gl-Inet Gl-Ar750s, classified under Insufficiently Protected Credentials. CVSS score: 5.9/10. Published 2023-06-13.
How severe is CVE-2023-33620?: Medium severity. CVSS v3 base score is 5.9 out of 10.