Critical severity9.8NVD Advisory· Published Sep 14, 2021· Updated Jun 17, 2026
CVE-2021-33719
CVE-2021-33719
Description
A vulnerability has been identified in SIPROTEC 5 relays with CPU variants CP050 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP100 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP300 (All versions < V8.80). Specially crafted packets sent to port 4443/tcp could cause a Denial-of-Service condition or potential remote code execution.
Affected products
7- cpe:2.3:o:siemens:siprotec_5_with_cpu_variant_cp050:*:*:*:*:*:*:*:*Range: <8.80
- cpe:2.3:o:siemens:siprotec_5_with_cpu_variant_cp100:*:*:*:*:*:*:*:*Range: <8.80
- cpe:2.3:o:siemens:siprotec_5_with_cpu_variant_cp300:*:*:*:*:*:*:*:*Range: <8.80
- Range: < V8.80
All versions < V8.80+ 2 more
- (no CPE)range: All versions < V8.80
- (no CPE)range: All versions < V8.80
- (no CPE)range: All versions < V8.80
Patches
Vulnerability mechanics
References
1- cert-portal.siemens.com/productcert/pdf/ssa-847986.pdfnvdPatchVendor Advisory
News mentions
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