Memory Corruption via Integer Underflow in Message Length Validation

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-70388
StatePUBLISHED
AssignerENISA
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-26 09:16:35 UTC
Updated2026-10-26 13:45:21 UTC
DescriptionSOEM 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.

Risk And Classification

Primary CVSS: v3.1 8.3 HIGH from a6d3dc9e-0591-4a13-bce7-0f5b31ff6158

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Problem Types: CWE-191 | CWE-195 | CWE-787 | CWE-191 CWE-191 Integer underflow (wrap or wraparound) | CWE-195 CWE-195 Signed to unsigned conversion error | CWE-787 CWE-787 Out-of-bounds write

VersionSourceTypeScoreSeverityVector
3.1a6d3dc9e-0591-4a13-bce7-0f5b31ff6158Secondary8.3HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
3.1CNACVSS8.3HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA RT-Labs AB SOEM affected 2.0.1 semver Not specified

References

ReferenceSourceLinkTags
rt-labs.com/wp-content/uploads/2026/10/RRTL-260921-01.pdf a6d3dc9e-0591-4a13-bce7-0f5b31ff6158 rt-labs.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: alosafuzz, 3ntr0py1337 / LeetProtect Research, Brian Willows / graith.co.uk, Eun0us / EspilonOrg, Mayur Agnihotri (en)

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