Security readout for executives and security teams
Plain-English summary
CVE-2023-37248 affects Siemens Tecnomatix Plant Simulation. A malicious PAR file can trigger memory corruption when opened, potentially letting attacker code run as the current user. The issue requires user interaction, so phishing, shared engineering files, or supplier-provided models are the main concern.
Executive priority
Treat this as a high-priority engineering workstation risk, not an internet-facing server emergency. Prioritize teams handling third-party simulation files because compromise could expose sensitive models and provide a foothold in engineering environments.
Technical view
The vulnerable parser performs an out-of-bounds write past an allocated buffer while processing a specially crafted PAR file. Affected releases are Tecnomatix Plant Simulation V2201 before V2201.0008 and V2302 before V2302.0002. CVSS 3.1 is 7.8 with local attack vector, low complexity, no privileges, and required user interaction.
Likely exposure
Exposure is limited to organizations running the listed Siemens Tecnomatix Plant Simulation versions, especially engineering environments that exchange PAR files with third parties or across trust boundaries.
Exploitation context
The bundle does not report active exploitation, and KEV is false. The CVSS vector includes proof-of-concept exploit maturity, but the provided sources do not include exploit details. Successful exploitation requires a user to open a crafted PAR file locally.
Researcher notes
Evidence is strongest for version scope, bug class, and impact. The bundle names ZDI-CAN-21155, CWE-787, and Siemens advisory SSA-764801, but does not provide parser internals, exploit artifacts, or confirmed in-the-wild activity.
Mitigation direction
- Upgrade V2201 installations to V2201.0008 or later.
- Upgrade V2302 installations to V2302.0002 or later.
- Review Siemens SSA-764801 for official remediation guidance.
- Block or quarantine untrusted PAR files until affected systems are upgraded.
- Limit PAR file exchange to trusted, validated sources.
Validation and detection
- Inventory Siemens Tecnomatix Plant Simulation installations and exact build versions.
- Identify users or workflows that open PAR files from external sources.
- Confirm V2201 systems are not below V2201.0008.
- Confirm V2302 systems are not below V2302.0002.
- Check endpoint controls for suspicious activity after opening unexpected PAR files.
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-787: 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 lookupCVE-2023-37248 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
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
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:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://cert-portal.siemens.com/productcert/pdf/ssa-764801.pdfCVE reference
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.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.