Riskcovery

CVE-2021-33737

State
Published
Severity
7.5 High
Published
Sep 14, 2021
Updated
Aug 3, 2024
Reserved
May 28, 2021

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:U/RC:Csiemens

Weaknesses

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

Affected Products

ProductVersions
SIMATIC CP 343-1 (incl. SIPLUS variants)Siemens
  • All versionsAffected
SIMATIC CP 343-1 Advanced (incl. SIPLUS variants)Siemens
  • All versionsAffected
SIMATIC CP 343-1 ERPCSiemens
  • All versionsAffected
SIMATIC CP 343-1 Lean (incl. SIPLUS variants)Siemens
  • All versionsAffected
SIMATIC CP 443-1Siemens
  • All versions < V3.3Affected
SIMATIC CP 443-1Siemens
  • All versions < V3.3Affected
SIMATIC CP 443-1 AdvancedSiemens
  • All versions < V3.3Affected
SIPLUS NET CP 443-1Siemens
  • All versions < V3.3Affected
SIPLUS NET CP 443-1 AdvancedSiemens
  • All versions < V3.3Affected

References

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