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CVE-2026-82943EUVD-2026-109669GHSA-2H24-JP9F-47QX

Out-of-Bounds Read via Unchecked Length Values

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.0.1
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

The SOEM (Simple Open EtherCAT Master) library is affected, allowing a malicious EtherCAT device to trigger reads of memory beyond the intended buffer in the master. This could allow an attacker to extract up to 64KB of data from the master's memory.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original 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.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  4. Record last updated

Affected versions

  • RT-Labs AB SOEM

    fixed in 2.0.1

References 1

rt-labs.com