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CVE-2020-22552

nvd nist
Published: Oct 28, 2020Modified: Jul 9, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

The Snap7 server component in version 1.4.1, when an attacker sends a crafted packet with COTP protocol the last-data-unit flag set to No and S7 writes a var function, the Snap7 server will be crashed.

Affected (1)

Products: Snap7 Project: Snap7
Snap7 Project
1 product
Snap7
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Snap7
Version 1.4.1

References (4)

Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory

Timeline

No history available yet.