Null Pointer Dereference in Mailbox Error Handling

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-82946
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 a vulnerability where a malicious device can crash the master system. When the software receives an error response, it clears an internal pointer but continues processing. If another message arrives before timeout, the software attempts to use the cleared pointer, causing a crash. An attacker can trigger this with a simple sequence of two messages.

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:N/I:N/A:H

Problem Types: CWE-476 | CWE-690 | CWE-476 CWE-476 NULL pointer dereference | CWE-690 CWE-690 Unchecked Return Value to NULL Pointer Dereference

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

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 (en)

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