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Package · Ubuntu

snap7

3 known vulnerabilities.

All Critical High Medium Low Exploited only Public exploit

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  • High 7.4
    CVE-2026-115723

    Snap7 through 1.4.3 Out-of-Bounds Write via BRecv and CheckAsBRecvCompletion

    Snap7 through 1.4.3 contains an out-of-bounds write vulnerability in the passive partner that allows a malicious active partner to overflow application buffers by declaring an unvalidated BSend total length. Attackers connecting from the configured peer addre…

    davenardella snap7 snap7 Ubuntu
  • High 7.4
    CVE-2026-111280

    snap7 through 1.4.3 Out-of-Bounds Write via TSnap7MicroClient::opReadArea

    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 c…

    davenardella snap7 snap7 Ubuntu