# nvdimm: virtio_pmem: refcount requests for token lifetime

CVE record · `CVE-2026-93196`

- **Identifiers:** `CVE-2026-93196`
- **State:** Confirmed
- **Severity:** CVSS 8.4 High
- **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, 16:12 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: `6e84200c0a2994b991259d19450eee561029bf70 to before 71ac70fc7f95963eca9d1145a9b02b8fe149eb4f` (git)
  - affected: `6e84200c0a2994b991259d19450eee561029bf70 to before 41b2025709ec104a07d15540399809ae5851246e` (git)
  - affected: `6e84200c0a2994b991259d19450eee561029bf70 to before 4691c137e9cbe76137d730a26d663d900ac7279b` (git)
  - affected: `6e84200c0a2994b991259d19450eee561029bf70 to before be072a5d5e35f4bdf2da22f600b5d6dc6c5ff491` (git)
  - affected: `6e84200c0a2994b991259d19450eee561029bf70 to before b1e740b9156621afd4c4aa66257f4dde8df1febe` (git)
  - affected: `6e84200c0a2994b991259d19450eee561029bf70 to before e57140944b5a47a7fd5a142faab29a02af040bc8` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.3`
  - unaffected: `before 5.3` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 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

- 8.4 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:N/UI:N/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-2026-93196](https://www.cve.org/CVERecord?id=CVE-2026-93196)
- [NVD: CVE-2026-93196](https://nvd.nist.gov/vuln/detail/CVE-2026-93196)

### References from the CNA

- <https://git.kernel.org/stable/c/71ac70fc7f95963eca9d1145a9b02b8fe149eb4f>
- <https://git.kernel.org/stable/c/41b2025709ec104a07d15540399809ae5851246e>
- <https://git.kernel.org/stable/c/4691c137e9cbe76137d730a26d663d900ac7279b>
- <https://git.kernel.org/stable/c/be072a5d5e35f4bdf2da22f600b5d6dc6c5ff491>
- <https://git.kernel.org/stable/c/b1e740b9156621afd4c4aa66257f4dde8df1febe>
- <https://git.kernel.org/stable/c/e57140944b5a47a7fd5a142faab29a02af040bc8>

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-2026-93196>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-93196/>. Everything for agents: <https://agentprime.io/llms.txt>.