Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-33720

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.

Published

2021-09-14T11:15:24.540

Last Modified

2024-11-21T06:09:26.700

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-120
  • Type: Primary
    CWE-120
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System siemens siprotec_5_with_cpu_variant_cp050 < 8.80 Yes
Operating System siemens siprotec_5_with_cpu_variant_cp100 < 8.80 Yes
Operating System siemens siprotec_5_with_cpu_variant_cp300 < 8.80 Yes
References