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Attacker Value
Unknown
CVE-2020-22552
Disclosure Date: October 28, 2020 (last updated February 15, 2024)
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.
0
Attacker Value
Unknown
CVE-2017-1000230
Disclosure Date: November 17, 2017 (last updated November 26, 2024)
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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