What is CVE-2023-33237?

CVE-2023-33237 is a high-severity vulnerability in Moxa Tn-5900 Series, classified under Incorrect Authorization. CVSS score: 8.8/10. Published 2023-08-17.

How severe is CVE-2023-33237?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2023-33237 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Moxa Tn-5900 Series

CVE-2023-33237

TN-5900 Series firmware version v3.3 and prior is vulnerable to improper-authentication vulnerability. This vulnerability arises from inadequate authentication measures implemented in the web API handler, allowing low-privileged APIs to ex…

Vulnerability class: Broken Access Control

EPSS: 0.003 (51.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Moxa Tn-5900 Series — versions 1.0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

Public proof-of-concept exploits

References

www.moxa.com/en/support/product-support/security-advisory/mpsa-230402-tn-5900-a… (vendor-advisory)

Frequently asked questions

What is CVE-2023-33237?: CVE-2023-33237 is a high-severity vulnerability in Moxa Tn-5900 Series, classified under Incorrect Authorization. CVSS score: 8.8/10. Published 2023-08-17.
How severe is CVE-2023-33237?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2023-33237 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.