What is CVE-2021-46559?

CVE-2021-46559 is a high-severity vulnerability in Moxa Tn-5900, classified under Insufficient Verification of Data Authenticity. CVSS score: 7.5/10. Published 2022-01-26.

How severe is CVE-2021-46559?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2021-46559 known to be exploited?

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

Vulnerability in Moxa Tn-5900

CVE-2021-46559

The firmware on Moxa TN-5900 devices through 3.1 has a weak algorithm that allows an attacker to defeat an inspection mechanism for integrity protection.

EPSS: 0.004 (35.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Moxa Tn-5900
Moxa Tn-5900_firmware
N/a — versions n/a

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-46559?: CVE-2021-46559 is a high-severity vulnerability in Moxa Tn-5900, classified under Insufficient Verification of Data Authenticity. CVSS score: 7.5/10. Published 2022-01-26.
How severe is CVE-2021-46559?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-46559 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.