# fs/ntfs3: reject out-of-range evcn in mi_enum_attr()

CVE record · `CVE-2026-90199`

- **Identifiers:** `CVE-2026-90199`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:07 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `013ff63b649475f0ee134e2c8d0c8e65284ede50 to before 0441e34ce098c19185a7b52c5b8b89a8a5b26888` (git)
  - affected: `013ff63b649475f0ee134e2c8d0c8e65284ede50 to before 7ab69cef49ebdfee288287d62641b24ab1445ecc` (git)
  - affected: `013ff63b649475f0ee134e2c8d0c8e65284ede50 to before ce9a619c432b9a4044fee115c5483fbed946c131` (git)
  - affected: `013ff63b649475f0ee134e2c8d0c8e65284ede50 to before 2b9a0e57bfd365e2096706b19ae34dce3b4a884b` (git)
  - affected: `013ff63b649475f0ee134e2c8d0c8e65284ede50 to before 20fd9f64c0050658f2031e6bd5d552c6f0c8f7e3` (git)
  - affected: `a7accf181a4709a6e380360372150cc4a1b6b89a` (git)
  - affected: `3dfd727873c3e8da74a2e3907120ff052c5f0bcc` (git)
  - affected: `1d7dd485108d4f633b543c9c14071cc325b68ae5` (git)
  - affected: `5.15.209 to before 5.16` (semver)
  - affected: `6.1.115 to before 6.2` (semver)
  - affected: `6.5.11 to before 6.6` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.6`
  - unaffected: `before 6.6` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.52 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.6 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 7.8 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0017, the 6th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90199](https://www.cve.org/CVERecord?id=CVE-2026-90199)
- [NVD: CVE-2026-90199](https://nvd.nist.gov/vuln/detail/CVE-2026-90199)

### References from the CNA

- <https://git.kernel.org/stable/c/0441e34ce098c19185a7b52c5b8b89a8a5b26888>
- <https://git.kernel.org/stable/c/7ab69cef49ebdfee288287d62641b24ab1445ecc>
- <https://git.kernel.org/stable/c/ce9a619c432b9a4044fee115c5483fbed946c131>
- <https://git.kernel.org/stable/c/2b9a0e57bfd365e2096706b19ae34dce3b4a884b>
- <https://git.kernel.org/stable/c/20fd9f64c0050658f2031e6bd5d552c6f0c8f7e3>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-90199>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90199/>. Everything for agents: <https://agentprime.io/llms.txt>.