VulnerabilityModified

CVE-2021-31345

A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), PLUSCONTROL 1st Gen (All versions).

CRITICAL 9.1EPSS 1.63%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.63%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), PLUSCONTROL 1st Gen (All versions). The total length of an UDP payload (set in the IP header) is unchecked. This may lead to various side effects, including Information Leak and Denial-of-Service conditions, depending on a user-defined applications that runs on top of the UDP protocol. (FSMD-2021-0006)

CVSS 3.1: 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS: 1.63% probability · 75th percentile
CISA KEV: Not listed
Weakness: CWE-1284
Affected: siemens/capital vstar · siemens/nucleus net · siemens/nucleus readystart v3 · siemens/nucleus source code · siemens/apogee modular building controller firmware · siemens/apogee modular equiment controller firmware · siemens/apogee pxc compact firmware · siemens/apogee pxc modular firmware · siemens/talon tc compact firmware · siemens/talon tc modular firmware
Source: productcert@siemens.com

References

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