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Search Results (3 CVEs found)
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-111280 | 1 Snap7 Project | 1 Snap7 | 2026-10-15 | 7.4 High |
| snap7 through 1.4.3 contains an out-of-bounds write vulnerability in TSnap7MicroClient::opReadArea() that allows malicious S7 peers to overflow client buffers via an unchecked DataLength field. Rogue or impersonated PLCs can return crafted ReadVar responses causing memcpy of up to 65535 bytes into caller buffers, crashing SCADA, HMI, or gateway processes and corrupting memory. | ||||
| CVE-2017-1000230 | 1 Snap7 Project | 1 Snap7 Server | 2025-04-20 | N/A |
| 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. | ||||
| CVE-2020-22552 | 1 Snap7 Project | 1 Snap7 | 2024-11-21 | 7.5 High |
| 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. | ||||
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