CVE-2021-31889

published 2021-11-09

CVE-2021-31889: A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303)…

critical 9.1 CVSS 3.1

AV N AC L PR N UI N S U C H I N A H

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). Malformed TCP packets with a corrupted SACK option leads to Information Leaks and Denial-of-Service conditions. (FSMD-2021-0015)

Affected

6 ranges

Vendor	Product	Version range	Fixed in
google	android	—	—
siemens	capital_embedded_ar_classic_431-422	< *	*
siemens	capital_embedded_ar_classic_r20-11	< V2303	V2303
siemens	nucleus_readystart_v3	< 2017.02.3	2017.02.3
siemens	pluscontrol_1st_gen	—	—
siemens	simotics_connect_400	—	—

CWE-191