What is CVE-2022-38742?

CVE-2022-38742 is a high-severity vulnerability in Rockwell Automation Thinmanager Thinserver, classified under Heap-based Buffer Overflow. CVSS score: 8.1/10. Published 2022-09-23.

How severe is CVE-2022-38742?

High severity. CVSS v3 base score is 8.1 out of 10.

Buffer overflow in Rockwell Automation Thinmanager Thinserver

CVE-2022-38742

Rockwell Automation ThinManager ThinServer versions 11.0.0 - 13.0.0 is vulnerable to a heap-based buffer overflow. An attacker could send a specifically crafted TFTP or HTTPS request, causing a heap-based buffer overflow that crashes the ThinServer process. If successfully exploited, this could expose the server to arbitrary remote code execution.

Vulnerability class: Buffer Overflow

Published 2022-09-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.222 (97.6th percentile), scored 2026-09-30.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.218 · newest: 0.222 · change: +0.004

Affected products

Rockwell Automation Thinmanager Thinserver — versions 11.0.0
Rockwellautomation Thinmanager

Weakness classification (CWE)

References

rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1136847 (Permissions Required, Vendor Advisory)

Frequently asked questions

What is CVE-2022-38742?: CVE-2022-38742 is a high-severity vulnerability in Rockwell Automation Thinmanager Thinserver, classified under Heap-based Buffer Overflow. CVSS score: 8.1/10. Published 2022-09-23.
How severe is CVE-2022-38742?: High severity. CVSS v3 base score is 8.1 out of 10.