VulnerabilityModified

CVE-2023-39979

There is a vulnerability in MXsecurity versions prior to 1.0.1 that can be exploited to bypass authentication.

CRITICAL 9.8EPSS 0.98%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.98%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.98% probability · 60th percentile
CISA KEV: Not listed
Weakness: CWE-334, CWE-330
Affected: moxa/mxsecurity
Source: psirt@moxa.com

References

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230403-mxsecurity-series-multiple-vulnerabilitiesVendor Advisory
https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230403-mxsecurity-series-multiple-vulnerabilitiesVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.