What is CVE-2023-39979?

CVE-2023-39979 is a critical-severity vulnerability in Moxa Mxsecurity Series, classified under CWE-334. CVSS score: 9.8/10. Published 2023-09-02.

How severe is CVE-2023-39979?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2023-39979 known to be exploited?

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

Vulnerability in Moxa Mxsecurity Series

CVE-2023-39979

There is a vulnerability in MXsecurity versions prior to 1.0.1 that can be exploited to bypass authentication. A remote attacker might access the system if the web service authenticator has insufficient random values.

EPSS: 0.003 (53.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Moxa Mxsecurity Series — versions 1.0

Weakness classification (CWE)

CWE-334

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

www.moxa.com/en/support/product-support/security-advisory/mpsa-230403-mxsecurit… (vendor-advisory)

Frequently asked questions

What is CVE-2023-39979?: CVE-2023-39979 is a critical-severity vulnerability in Moxa Mxsecurity Series, classified under CWE-334. CVSS score: 9.8/10. Published 2023-09-02.
How severe is CVE-2023-39979?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-39979 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.