CVE-2026-82947 — HIGH (7.1)

Vulnerability Description

SOEM version 2.0.0 and earlier contains multiple vulnerabilities in frame processing where a malicious device can cause the master to read data outside allocated buffers. The software uses length and offset values from device messages without validating them against buffer sizes. This can cause the master to access invalid memory locations, potentially disclosing sensitive information or causing crashes.

CVSS Score

7.1

HIGH

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

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

LOW

Related Weaknesses (CWE)

CWE-787 CWE-125 CWE-191 CWE-129

References

https://rt-labs.com/wp-content/uploads/2026/10/RRTL-260921-01.pdf

FAQ

What is CVE-2026-82947?

CVE-2026-82947 is a vulnerability with a CVSS score of 7.1 (HIGH). SOEM version 2.0.0 and earlier contains multiple vulnerabilities in frame processing where a malicious device can cause the master to read data outside allocated buffers. The software uses length and ...

How severe is CVE-2026-82947?

CVE-2026-82947 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-82947?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.