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CVE record · `CVE-2026-89528`

- **Identifiers:** `CVE-2026-89528`
- **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:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:44 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: `026d958b38c628a1b4ced534808945365e2747a5 to before 08aa4162df91880a79be744aaa9570b04d4875c4` (git)
  - affected: `026d958b38c628a1b4ced534808945365e2747a5 to before beb4e9801f6362436102acc4cc5304b7324f9365` (git)
  - affected: `026d958b38c628a1b4ced534808945365e2747a5 to before e70fdb121171c3eb0ac34eb545721828cd737717` (git)
  - affected: `026d958b38c628a1b4ced534808945365e2747a5 to before 1a3af2262cb384112ef38632de4690682be528b4` (git)
  - affected: `026d958b38c628a1b4ced534808945365e2747a5 to before 465f511f59a0fa7a80d5d1073c4b24f28ea38f58` (git)
  - affected: `026d958b38c628a1b4ced534808945365e2747a5 to before 0ca487abb3bdf581851664b5db21f364caf57682` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.13`
  - unaffected: `before 4.13` (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: `6.18.51 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:N/I:N/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0071, the 53rd 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-2026-89528](https://www.cve.org/CVERecord?id=CVE-2026-89528)
- [NVD: CVE-2026-89528](https://nvd.nist.gov/vuln/detail/CVE-2026-89528)

### References from the CNA

- <https://git.kernel.org/stable/c/08aa4162df91880a79be744aaa9570b04d4875c4>
- <https://git.kernel.org/stable/c/beb4e9801f6362436102acc4cc5304b7324f9365>
- <https://git.kernel.org/stable/c/e70fdb121171c3eb0ac34eb545721828cd737717>
- <https://git.kernel.org/stable/c/1a3af2262cb384112ef38632de4690682be528b4>
- <https://git.kernel.org/stable/c/465f511f59a0fa7a80d5d1073c4b24f28ea38f58>
- <https://git.kernel.org/stable/c/0ca487abb3bdf581851664b5db21f364caf57682>

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-2026-89528>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89528/>. Everything for agents: <https://agentprime.io/llms.txt>.