CVE-2021-33737

No fix known EPSS 1%CVSS 7.5

A vulnerability has been identified in SIMATIC CP 343-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 ERPC (All versions), SIMATIC CP 343-1 Lean (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 Advanced (All versions < V3.3), SIPLUS NET CP 443-1 (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (All versions < V3.3). Sending a specially crafted packet to port 102/tcp of an affected device could cause a denial of service condition. A restart is needed to restore normal operations.

Published 2021-09-14 · CVE record · OSV

Products: Siemens SIMATIC CP 343-1 (incl. SIPLUS variants), Siemens SIMATIC CP 343-1 Advanced (incl. SIPLUS variants), Siemens SIMATIC CP 343-1 ERPC, Siemens SIMATIC CP 343-1 Lean (incl. SIPLUS variants), Siemens SIMATIC CP 443-1, Siemens SIMATIC CP 443-1 Advanced, Siemens SIPLUS NET CP 443-1, Siemens SIPLUS NET CP 443-1 Advanced