# net: dsa: mv88e6xxx: bound the policy rule dump by the caller's buffer size

CVE record · `CVE-2026-98027`

- **Identifiers:** `CVE-2026-98027`
- **State:** Confirmed
- **Severity:** CVSS 7.0 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Sept 2026, 10:23 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: `da7dc87553046a43be1620a783ce3d9f6583d322 to before 7e4bfc5f0b66feb22cba821303fc25ca22cd0887` (git)
  - affected: `da7dc87553046a43be1620a783ce3d9f6583d322 to before 01124cd2cf4b71755b1130ac82d78dcfbd5d69e3` (git)
  - affected: `da7dc87553046a43be1620a783ce3d9f6583d322 to before 609c4378f212cf580aae02250f1146caf63d873f` (git)
  - affected: `da7dc87553046a43be1620a783ce3d9f6583d322 to before c5b5c52b6524c9fb50def2260baac745c095ec3a` (git)
  - affected: `da7dc87553046a43be1620a783ce3d9f6583d322 to before 44cd4674d9aa5bdf793b8a8b481c9e8536ed6070` (git)
  - affected: `da7dc87553046a43be1620a783ce3d9f6583d322 to before 7a683c2b062810bca203e41866389daf387c235b` (git)
  - affected: `da7dc87553046a43be1620a783ce3d9f6583d322 to before cda5ac8fe8ac8e80b1703ebb8c4250726fc19739` (git)
  - affected: `da7dc87553046a43be1620a783ce3d9f6583d322 to before b1fffc273112e7284c5b705e186b43b5770cd3d5` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.4`
  - unaffected: `before 5.4` (semver)
  - unaffected: `5.10.271 to 5.10.*, inclusive` (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: `7.2.7 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0012, the 1st 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 25 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98027](https://www.cve.org/CVERecord?id=CVE-2026-98027)
- [NVD: CVE-2026-98027](https://nvd.nist.gov/vuln/detail/CVE-2026-98027)

### References from the CNA

- <https://git.kernel.org/stable/c/7e4bfc5f0b66feb22cba821303fc25ca22cd0887>
- <https://git.kernel.org/stable/c/01124cd2cf4b71755b1130ac82d78dcfbd5d69e3>
- <https://git.kernel.org/stable/c/609c4378f212cf580aae02250f1146caf63d873f>
- <https://git.kernel.org/stable/c/c5b5c52b6524c9fb50def2260baac745c095ec3a>
- <https://git.kernel.org/stable/c/44cd4674d9aa5bdf793b8a8b481c9e8536ed6070>
- <https://git.kernel.org/stable/c/7a683c2b062810bca203e41866389daf387c235b>
- <https://git.kernel.org/stable/c/cda5ac8fe8ac8e80b1703ebb8c4250726fc19739>
- <https://git.kernel.org/stable/c/b1fffc273112e7284c5b705e186b43b5770cd3d5>

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-2026-98027>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98027/>. Everything for agents: <https://agentprime.io/llms.txt>.