# platform/x86: dell-wmi-base: Fix handling of ultra performance key

CVE record · `CVE-2026-93129`

- **Identifiers:** `CVE-2026-93129`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:11 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: `5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before ef16f467393ca1a15ec8431fba5e67dd6071074e` (git)
  - affected: `5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before 30674a7bbf20311a0c4edd5edb9526ef1eecc692` (git)
  - affected: `5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before ace1a687ea9ea70d17e3089ca173acfa1ec24412` (git)
  - affected: `5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before 16a82add1918d3aae1e0b68c0a983b6fc64f5062` (git)
  - affected: `5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before 392c19faec6bf4cb72fb02322e2a61e198dd8f72` (git)
  - affected: `5fbd827eb9c224c33a5f263ee543a75fe957faa3 to before adfd6846bea13667ff28f8aaf00c32fbd69825ab` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.16`
  - unaffected: `before 5.16` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.114 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.57 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

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> The dell-wmi-base driver in the Linux kernel, from 5.16 before the fix, can overread a buffer when handling the ultra performance key. The source gives few details on how an attacker would trigger this. Upgrade to Linux kernel 6.1.191, 6.6.160, 6.12.114, or 6.18.57 or later in the matching series.

Written 12 Nov 2026.

## 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

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0021, the 10th percentile, on 14 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-2026-93129](https://www.cve.org/CVERecord?id=CVE-2026-93129)
- [NVD: CVE-2026-93129](https://nvd.nist.gov/vuln/detail/CVE-2026-93129)

### References from the CNA

- <https://git.kernel.org/stable/c/ef16f467393ca1a15ec8431fba5e67dd6071074e>
- <https://git.kernel.org/stable/c/30674a7bbf20311a0c4edd5edb9526ef1eecc692>
- <https://git.kernel.org/stable/c/ace1a687ea9ea70d17e3089ca173acfa1ec24412>
- <https://git.kernel.org/stable/c/16a82add1918d3aae1e0b68c0a983b6fc64f5062>
- <https://git.kernel.org/stable/c/392c19faec6bf4cb72fb02322e2a61e198dd8f72>
- <https://git.kernel.org/stable/c/adfd6846bea13667ff28f8aaf00c32fbd69825ab>

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-2026-93129>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-93129/>. Everything for agents: <https://agentprime.io/llms.txt>.