# fs/ntfs3: validate index entry key bounds

CVE record · `CVE-2026-97438`

- **Identifiers:** `CVE-2026-97438`
- **State:** Confirmed
- **Severity:** CVSS 7.1 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 24 Sept 2026
- **Updated:** 3 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 16:03 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: `82cae269cfa953032fbb8980a7d554d60fb00b17 to before c8d93bc4823baecab3c39b877e16ac5f8d4d41ba` (git)
  - affected: `82cae269cfa953032fbb8980a7d554d60fb00b17 to before 7feeb424bda7f6ffaf5090cdd01b300eaa74c02b` (git)
  - affected: `82cae269cfa953032fbb8980a7d554d60fb00b17 to before d564a885219a655077eefafeb72395a4580ebd69` (git)
  - affected: `82cae269cfa953032fbb8980a7d554d60fb00b17 to before a8f4fb6a7d58974ffc9aed597401528b181d76dc` (git)
  - affected: `82cae269cfa953032fbb8980a7d554d60fb00b17 to before 0257e3ea00e19129f3ad5c039d8b8fdff0796835` (git)
  - affected: `82cae269cfa953032fbb8980a7d554d60fb00b17 to before 98d6e5d9dc1d34dcffc61549617581a5fe1ef807` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.15`
  - unaffected: `before 5.15` (semver)
  - unaffected: `5.15.222 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0013, the 2nd percentile, on 12 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 24 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-97438](https://www.cve.org/CVERecord?id=CVE-2026-97438)
- [NVD: CVE-2026-97438](https://nvd.nist.gov/vuln/detail/CVE-2026-97438)

### References from the CNA

- <https://git.kernel.org/stable/c/c8d93bc4823baecab3c39b877e16ac5f8d4d41ba>
- <https://git.kernel.org/stable/c/7feeb424bda7f6ffaf5090cdd01b300eaa74c02b>
- <https://git.kernel.org/stable/c/d564a885219a655077eefafeb72395a4580ebd69>
- <https://git.kernel.org/stable/c/a8f4fb6a7d58974ffc9aed597401528b181d76dc>
- <https://git.kernel.org/stable/c/0257e3ea00e19129f3ad5c039d8b8fdff0796835>
- <https://git.kernel.org/stable/c/98d6e5d9dc1d34dcffc61549617581a5fe1ef807>

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-2026-97438>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-97438/>. Everything for agents: <https://agentprime.io/llms.txt>.