Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2018-4850

A vulnerability has been identified in SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below (All versions), SIMATIC S7-400 (incl. F) CPU hardware version 5.0 (All firmware versions < V5.2), SIMATIC S7-400H CPU hardware version 4.5 and below (All versions). The affected CPUs improperly validate S7 communication packets which could cause a Denial-of-Service condition of the CPU. The CPU will remain in DEFECT mode until manual restart.

Published

2018-05-16T17:29:00.387

Last Modified

2024-11-21T04:07:35.003

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 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-20
  • Type: Primary
    NVD-CWE-noinfo
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System siemens simatic_s7-400_firmware ≤ 4.0 Yes
Hardware siemens simatic_s7-400 - No
Operating System siemens simatic_s7-400_firmware < 5.2 Yes
Hardware siemens simatic_s7-400 - No
Operating System siemens simatic_s7-400h_firmware ≤ 4.5 Yes
Hardware siemens simatic_s7-400h - No
References