CVE WatchOct 26, 2026

CVE-2026-70388

SOEM version 2.0.0 and earlier contains vulnerabilities where a malicious device on the network can send specially crafted messages that cau

CVSS

8.3

High

EPSS

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KEV

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Exploit Today

0-100

Published: Oct 26, 2026 · Last modified: Oct 26, 2026 · CWE-191 · CWE-195 · CWE-787

EPSS · 30d

Not enough EPSS history yet.

Technical description

SOEM version 2.0.0 and earlier contains vulnerabilities where a malicious device on the network can send specially crafted messages that cause the master to write data outside allocated memory boundaries. The software performs arithmetic on message length values without proper validation, allowing negative or extremely large values to bypass safety checks. This can corrupt memory and potentially allow an attacker to execute arbitrary code on the master system.

Official references

rt-labs.comhttps://rt-labs.com/wp-content/uploads/2026/10/RRTL-260921-01.pdf

Related CVEs

CVECVSSEPSSKEVRExploitTitleMod.

CVE-2026-829477.1 HIG

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——0SOEM version 2.0.0 and earlier contains multiple vulnerabilities in frame processing where a malicious device can cause the master to read data outside allocated buffers. The software uses length and offset values from device messages without validating them against buffer sizes. This can cause the master to access invalid memory locations, potentially disclosing sensitive information or causing crashes.4h CVE-2026-829456.5 MED

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——0SOEM version 2.0.0 and earlier contains a vulnerability during device configuration where a malicious device can cause memory corruption. The software writes configuration data to a fixed-size array without checking if the array index exceeds its maximum size of EC_MAXFMMU entries. A device presenting more than EC_MAXFMMU configuration blocks can force writes beyond the array boundary, corrupting adjacent memory structures and potentially disrupting subsequent operations.4h CVE-2026-829448.8 HIG

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——0SOEM version 2.0.0 and earlier contains a vulnerability in multi-segment data transfers where a malicious device can overflow memory buffers. The software checks the total size only once at the beginning, but doesn't track the cumulative size as multiple segments arrive. An attacker can declare a small initial size to pass validation, then send additional segments that exceed the allocated buffer. This allows the attacker to write controlled data beyond buffer boundaries, potentially enabling code execution.4h CVE-2026-829436.5 MED

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——0SOEM version 2.0.0 and earlier contains vulnerabilities where a malicious device can send messages that cause the master to read data from memory locations beyond the intended buffer. The software uses length values from device responses without validating them against actual buffer sizes. An attacker can exploit this to extract up to 64KB of data from the master's memory.4h CVE-2026-1078957.8 HIG

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——0V-SFT provided by FUJI ELECTRIC CO., LTD. contains an out-of-bounds write vulnerability. Opening a crafted V7 file may lead to information exposure or arbitrary code execution on the affected product.6h CVE-2026-1160996.3 MED

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——0A flaw has been found in Fusion Creators Studio SCP Containment Breach Multiplayer up to 1.295. This issue affects the function BlitzBanks of the component Skynet++ Virtual Machine. Executing a manipulation can lead to out-of-bounds write. The attack can be executed remotely. The exploit has been published and may be used. Upgrading to version 1.3R is capable of addressing this issue. It is recommended to upgrade the affected component.13h