Security readout for executives and security teams
Plain-English summary
ThinManager ThinServer can be crashed, and possibly taken over, by a specially crafted network request. The issue affects Rockwell Automation ThinServer versions 11.0.0 through 13.0.0. This matters most where ThinManager supports operational technology or production access, because outage or remote code execution could affect plant operations.
Executive priority
Treat this as a high-priority OT software risk, especially for production-connected ThinManager servers. There is no supplied evidence of known exploitation, but the potential impact includes service outage and possible remote code execution.
Technical view
CVE-2022-38742 is a heap-based buffer overflow, CWE-122, reachable over TFTP or HTTPS. The CVSS 3.1 score is 8.1, with network attack vector, no privileges, no user interaction, high impact, and high attack complexity.
Likely exposure
Exposure is likely limited to organizations running Rockwell Automation ThinManager ThinServer 11.0.0 through 13.0.0, especially if TFTP or HTTPS access is reachable from untrusted or broad internal networks.
Exploitation context
The supplied sources do not show CISA KEV listing or active exploitation. The CVE states a crafted TFTP or HTTPS request can crash ThinServer and may expose the server to arbitrary remote code execution.
Researcher notes
The bundle identifies one affected product family and a broad version range. It does not provide exploit details, proof of active exploitation, or specific fixed versions. Researchers should avoid assuming exposure beyond ThinManager ThinServer and should validate against Rockwell guidance.
Mitigation direction
- Inventory ThinManager ThinServer versions and identify 11.0.0 through 13.0.0 deployments.
- Review Rockwell advisory 1136847 for vendor-approved updates, workarounds, or compensating controls.
- Restrict TFTP and HTTPS access to trusted management networks where operationally feasible.
- Monitor ThinServer availability for crashes or unexpected service restarts.
- Prioritize remediation for systems supporting production, remote access, or shared OT services.
Validation and detection
- Confirm ThinServer version from asset inventory, vendor console, or change records.
- Verify whether TFTP or HTTPS is reachable from user, corporate, or external networks.
- Review logs and monitoring for ThinServer process crashes or repeated restarts.
- Confirm remediation status against Rockwell advisory 1136847 and internal change records.
- Document any compensating controls if immediate vendor remediation is not possible.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-122: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-38742 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H2.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1136847CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Heap-based Buffer Overflow
Heap-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.