# nvme: zero the discard fallback page

CVE record · `CVE-2026-89483`

- **Identifiers:** `CVE-2026-89483`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 11 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:43 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: `530436c45ef2e446c12538a400e465929a0b3ade to before 76139b5bbf531e675934b97227be3521c7fdd537` (git)
  - affected: `530436c45ef2e446c12538a400e465929a0b3ade to before 3f84d2bd0d8ae8c7e8e0f8fc3cbf018a282971a1` (git)
  - affected: `530436c45ef2e446c12538a400e465929a0b3ade to before 415f2772ebcbc7f3f1ab1a71915dab82cee3465e` (git)
  - affected: `530436c45ef2e446c12538a400e465929a0b3ade to before 66b5af23b6f956e57f8205c46aa80b054631be34` (git)
  - affected: `530436c45ef2e446c12538a400e465929a0b3ade to before dc4d4b70a863f7e39ef8bd137634be4e6db8b084` (git)
  - affected: `530436c45ef2e446c12538a400e465929a0b3ade to before 67551d8430df94c827e1830bd3a5fae1f66a5219` (git)
  - affected: `530436c45ef2e446c12538a400e465929a0b3ade to before f5827817b4fc7feeabf4f53fb4b626e6edc52fef` (git)
  - affected: `530436c45ef2e446c12538a400e465929a0b3ade to before bededeaaeff404978a5a8e2a605a6c3017cddd3e` (git)
  - affected: `ffa56cbdd2409b522b4cb56461bea1c45889417b` (git)
  - affected: `8b0acb768a06083b0d28bace1481c1f6679e76f4` (git)
  - affected: `4.19.92 to before 4.20` (semver)
  - affected: `5.4.7 to before 5.5` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.5`
  - unaffected: `before 5.5` (semver)
  - unaffected: `5.10.270 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.221 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.109 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.50 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.4 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0057, the 47th 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 11 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89483](https://www.cve.org/CVERecord?id=CVE-2026-89483)
- [NVD: CVE-2026-89483](https://nvd.nist.gov/vuln/detail/CVE-2026-89483)

### References from the CNA

- <https://git.kernel.org/stable/c/76139b5bbf531e675934b97227be3521c7fdd537>
- <https://git.kernel.org/stable/c/3f84d2bd0d8ae8c7e8e0f8fc3cbf018a282971a1>
- <https://git.kernel.org/stable/c/415f2772ebcbc7f3f1ab1a71915dab82cee3465e>
- <https://git.kernel.org/stable/c/66b5af23b6f956e57f8205c46aa80b054631be34>
- <https://git.kernel.org/stable/c/dc4d4b70a863f7e39ef8bd137634be4e6db8b084>
- <https://git.kernel.org/stable/c/67551d8430df94c827e1830bd3a5fae1f66a5219>
- <https://git.kernel.org/stable/c/f5827817b4fc7feeabf4f53fb4b626e6edc52fef>
- <https://git.kernel.org/stable/c/bededeaaeff404978a5a8e2a605a6c3017cddd3e>

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-2026-89483>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89483/>. Everything for agents: <https://agentprime.io/llms.txt>.