CVEvulnerability

CVE-2017-1000230

7.5 HIGH Published 2017-11-17 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2017-11-17
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
7.5 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-20

Description

The Snap7 Server version 1.4.1 can be crashed when the ItemCount field of the ReadVar or WriteVar functions of the S7 protocol implementation in Snap7 are provided with unexpected input, thus resulting in denial of service attack.

Affected configurations

• snap7 project snap7 server 1.4.1

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References