CVE-2026-75538

A flaw was found in Erlang/OTP. A remote, unauthenticated attacker can exploit a signed length overflow vulnerability in the inet TCP driver when operating in packet,4 mode. By sending a specially crafted packet, the attacker can cause an incorrect packet length calculation, leading to a buffer...

A Signed Length Overflow in Erlang/OTP's inet TCP Driver Overflows the Receive Buffer Into BEAM VM Memory From an Unauthenticated Peer

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CVE-2026-75538

CVE-2026-75538 is a signed integer overflow in the Erlang/OTP inet TCP driver when operating in {packet,4} mode. An unauthenticated remote attacker can trigger an incorrect packet-length calculation that overflows the receive buffer into the BEAM VM allocator area (up to ~2 GB), corrupting alloca...

CVE-2026-75538 A Signed Length Overflow in Erlang/OTP's inet TCP Driver Overflows the Receive Buffer Into BEAM VM Memory From an Unauthenticated Peer

An attacker that connects to an open Erlang TCP port that uses the inet driver with packet,4 mode can use a signed overflow in an incorrect packet length calculation to overflow the receive buffer into the VM allocator area and beyond up to about 2 GB. This would easily trash the allocated block'...

CVE-2026-75538 A Signed Length Overflow in Erlang/OTP's inet TCP Driver Overflows the Receive Buffer Into BEAM VM Memory From an Unauthenticated Peer

An attacker that connects to an open Erlang TCP port that uses the inet driver with packet,4 mode can use a signed overflow in an incorrect packet length calculation to overflow the receive buffer into the VM allocator area and beyond up to about 2 GB. This would easily trash the allocated block'...

CVE-2026-51536

OpENer version 2.3.0 (commit 76b95cf) is vulnerable to a Stack Buffer Overflow during the parsing of incoming Common Industrial Protocol (CIP) network packets. The root cause is an inconsistent typing of the length parameter across the call stack; an upstream length calculated as an int is passed...