CVE-2021-31346
high-risk
Published 2021-11-09
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), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), SIMOTICS CONNECT 400 (All versions < V1.0.0.0). The total length of an ICMP 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 the network buffer organization in memory. (FSMD-2021-0007)
Do I need to act?
~
2.5% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.2/10
High
NETWORK
/ LOW complexity
Affected Products (11)
Capital Vstar
Nucleus Readystart V4
Apogee Modular Building Controller Firmware
Apogee Modular Equiment Controller Firmware
Apogee Pxc Compact Firmware
Apogee Pxc Modular Firmware
Talon Tc Compact Firmware
Talon Tc Modular Firmware
Affected Vendors
References (15)
Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf
Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-114589.pdf
Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf
Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-114589.pdf
50
/ 100
high-risk
Severity
28/34 · Critical
Exploitability
6/34 · Minimal
Exposure
16/34 · Moderate