CVE-2020-22552
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductSnap7
PublishedOct 28, 2020
First seenOct 28, 2020
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| snap7_project snap7 | 1.4.1 | — |
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