CVE-2021-31883 | BDVDB-2026-164012 Detail
SiemensCapital Embedded AR Classic 431-422
Description#
A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303). When processing a DHCP ACK message, the DHCP client application does not validate the length of the Vendor option(s), leading to Denial-of-Service conditions. (FSMD-2021-0013)
Impact#
Per CVSS v3.1: confidentiality impact low, integrity impact none, availability impact high. Attack vector: adjacent.
Weaknesses#
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References#
- https://cert-portal.siemens.com/productcert/pdf/ssa-114589.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-620288.pdf
- https://cert-portal.siemens.com/productcert/html/ssa-114589.html
- https://cert-portal.siemens.com/productcert/html/ssa-044112.html
- https://cert-portal.siemens.com/productcert/html/ssa-620288.html
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.