CVE-2017-1000230

7.5 HIGH
Published: November 17, 2017 Modified: May 13, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://sourceforge.net/p/snap7/discussion/bugfix/thread/2d2d085c/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

2 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.3%
57th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

snap7_project