Linux Distros Unpatched Vulnerability : CVE-2026-111280

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

EUVD-2026-102471

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...

UBUNTU-CVE-2026-111280

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...

CVE-2026-111280

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...

CVE-2026-111280

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...

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 causing memcpy of up to 65535 bytes into...

CVE-2026-111280

The snap7 library, versions through 1.4.3 , is vulnerable to an out-of-bounds write in the TSnap7MicroClient::opReadArea() function. The root cause is an unchecked DataLength field , which allows malicious S7 peers to overflow client buffers. Specifically, rogue or impersonated PLCs can return cr...

CVE-2026-90572

A vulnerability was determined in davenardella snap7 up to 1.4.3. The affected element is the function TSnap7MicroClient::opUpload of the file src/core/s7microclient.cpp. Executing a manipulation of the argument DataLen can lead to memory corruption. The attack can be executed remotely. The explo...

CVE-2026-90572

A memory corruption vulnerability was identified in davenardella/snap7 (versions up to 1.4.3 ), affecting the function TSnap7MicroClient::opUpload in src/core/s7_micro_client.cpp. Manipulating the DataLen argument can trigger the corruption. The attack is remote over the network but requires high...

CVE-2026-90572 davenardella snap7 s7_micro_client.cpp opUpload memory corruption

A vulnerability was determined in davenardella snap7 up to 1.4.3. The affected element is the function TSnap7MicroClient::opUpload of the file src/core/s7microclient.cpp. Executing a manipulation of the argument DataLen can lead to memory corruption. The attack can be executed remotely. The explo...

CVE-2026-90572 davenardella snap7 s7_micro_client.cpp opUpload memory corruption

A vulnerability was determined in davenardella snap7 up to 1.4.3. The affected element is the function TSnap7MicroClient::opUpload of the file src/core/s7microclient.cpp. Executing a manipulation of the argument DataLen can lead to memory corruption. The attack can be executed remotely. The explo...

EUVD-2026-77053

A vulnerability was determined in davenardella snap7 up to 1.4.3. The affected element is the function TSnap7MicroClient::opUpload of the file src/core/s7microclient.cpp. Executing a manipulation of the argument DataLen can lead to memory corruption. The attack can be executed remotely. The explo...

PT-2026-90877

A vulnerability was determined in davenardella snap7 up to 1.4.3. The affected element is the function TSnap7MicroClient::opUpload of the file src/core/s7 micro client.cpp. Executing a manipulation of the argument DataLen can lead to memory corruption. The attack can be executed remotely. The...

CVE-2026-90572: Improper Restriction of Operations within the Bounds of a Memory Buffer

A vulnerability was determined in davenardella snap7 up to 1.4.3. The affected element is the function TSnap7MicroClient::opUpload of the file src/core/s7microclient.cpp. Executing a manipulation of the argument DataLen can lead to memory corruption. The attack can be executed remotely. The explo...

CVE-2026-16225

A security flaw has been discovered in davenardella snap7 up to 1.4.3. The impacted element is the function TSnap7Peer::NegotiatePDULength of the file src/core/s7peer.cpp. The manipulation of the argument PDULength results in out-of-bounds write. The attack can be executed remotely. The exploit h...

CVE-2026-16225

A security flaw has been discovered in davenardella snap7 up to 1.4.3. The impacted element is the function TSnap7Peer::NegotiatePDULength of the file src/core/s7peer.cpp. The manipulation of the argument PDULength results in out-of-bounds write. The attack can be executed remotely. The exploit h...

EUVD-2026-45435

A security flaw has been discovered in davenardella snap7 up to 1.4.3. The impacted element is the function TSnap7Peer::NegotiatePDULength of the file src/core/s7peer.cpp. The manipulation of the argument PDULength results in out-of-bounds write. The attack can be executed remotely. The exploit h...

CVE-2026-16225 davenardella snap7 s7_peer.cpp NegotiatePDULength out-of-bounds write

A security flaw has been discovered in davenardella snap7 up to 1.4.3. The impacted element is the function TSnap7Peer::NegotiatePDULength of the file src/core/s7peer.cpp. The manipulation of the argument PDULength results in out-of-bounds write. The attack can be executed remotely. The exploit h...

CVE-2026-16225

Technical details are not publicly available in the provided documents. Monitor for updates.

CVE-2026-16225 davenardella snap7 s7_peer.cpp NegotiatePDULength out-of-bounds write

A security flaw has been discovered in davenardella snap7 up to 1.4.3. The impacted element is the function TSnap7Peer::NegotiatePDULength of the file src/core/s7peer.cpp. The manipulation of the argument PDULength results in out-of-bounds write. The attack can be executed remotely. The exploit h...