Out-of-Bounds Read via Unchecked Length Values

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-82943
StatePUBLISHED
AssignerENISA
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-26 09:16:36 UTC
Updated2026-10-26 15:16:44 UTC
DescriptionSOEM 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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from a6d3dc9e-0591-4a13-bce7-0f5b31ff6158

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

Problem Types: CWE-125 | CWE-195 | CWE-200 | CWE-125 CWE-125 Out-of-bounds read | CWE-195 CWE-195 Signed to unsigned conversion error | CWE-200 CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

VersionSourceTypeScoreSeverityVector
3.1a6d3dc9e-0591-4a13-bce7-0f5b31ff6158Secondary6.5MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.1CNACVSS6.5MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

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

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

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: f0rw4rd (quellsec.dev), alosafuzz, 3ntr0py1337 (LeetProtect Research), Brian Willows (graith.co.uk), Mayur Agnihotri (en)

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