CVE-2026-82943

Out-of-Bounds Read via Unchecked Length Values

Published Oct 26, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
SOEM 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Rt-labs Ab
Rt-labs Ab soem
Vendors & Products Rt-labs Ab
Rt-labs Ab soem
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description SOEM 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.
Title Out-of-Bounds Read via Unchecked Length Values
Weaknesses CWE-125
CWE-195
CWE-200
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ENISA
Published
Updated
Oct 26, 2026, 2:35 PM
Reserved
Aug 31, 2026, 12:26 PM
Status
Awaiting Analysis
Published
Oct 26, 2026, 9:16 AM
Modified
Oct 26, 2026, 3:16 PM