# net: bridge: mdb: restart port group walk after deletion

CVE record · `CVE-2026-98487`

- **Identifiers:** `CVE-2026-98487`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Oct 2026
- **Updated:** 24 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:16 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: `a6acb535afb2a3b688a7858f05b61f0433e480d5 to before 46ec55855c972504258c371677ac039ba20e5d12` (git)
  - affected: `a6acb535afb2a3b688a7858f05b61f0433e480d5 to before ab3c4a4c85f2e1e8d04b5c1770dea8412d21c7fe` (git)
  - affected: `a6acb535afb2a3b688a7858f05b61f0433e480d5 to before fe2a42789c12eb7c5d3a42191e2cc735a6c35ead` (git)
  - affected: `a6acb535afb2a3b688a7858f05b61f0433e480d5 to before ab1404ac81154a89fb61ac50ae9a04cd8d4834dc` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.8`
  - unaffected: `before 6.8` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.55 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.9 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0016, the 5th percentile, on 8 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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98487](https://www.cve.org/CVERecord?id=CVE-2026-98487)
- [NVD: CVE-2026-98487](https://nvd.nist.gov/vuln/detail/CVE-2026-98487)

### References from the CNA

- <https://git.kernel.org/stable/c/46ec55855c972504258c371677ac039ba20e5d12>
- <https://git.kernel.org/stable/c/ab3c4a4c85f2e1e8d04b5c1770dea8412d21c7fe>
- <https://git.kernel.org/stable/c/fe2a42789c12eb7c5d3a42191e2cc735a6c35ead>
- <https://git.kernel.org/stable/c/ab1404ac81154a89fb61ac50ae9a04cd8d4834dc>

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-2026-98487>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98487/>. Everything for agents: <https://agentprime.io/llms.txt>.