High severity7.5NVD Advisory· Published Nov 9, 2021· Updated Jun 17, 2026
CVE-2021-31345
CVE-2021-31345
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)
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5431-422, R20-11 < V2303+ 1 more
- (no CPE)range: 431-422, R20-11 < V2303
- (no CPE)range: 0
All versions+ 1 more
- (no CPE)range: All versions
- (no CPE)range: All versions
- Range: 0
Patches
Vulnerability mechanics
References
8- cert-portal.siemens.com/productcert/pdf/ssa-044112.pdfnvdVendor Advisory
- cert-portal.siemens.com/productcert/pdf/ssa-114589.pdfnvdVendor Advisory
- cert-portal.siemens.com/productcert/html/ssa-044112.htmlnvd
- cert-portal.siemens.com/productcert/html/ssa-114589.htmlnvd
- cert-portal.siemens.com/productcert/html/ssa-620288.htmlnvd
- cert-portal.siemens.com/productcert/html/ssa-845392.htmlnvd
- cert-portal.siemens.com/productcert/pdf/ssa-620288.pdfnvd
- cert-portal.siemens.com/productcert/pdf/ssa-845392.pdfnvd
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