# udp: remove a disconnected socket from the 4-tuple hash table

CVE record · `CVE-2026-98595`

- **Identifiers:** `CVE-2026-98595`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Oct 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:19 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: `78c91ae2c6deb5d236a5a93ff2995cdd05514380 to before c21daf37d5ce9a4e234b7c42238ac1e6041e28e4` (git)
  - affected: `78c91ae2c6deb5d236a5a93ff2995cdd05514380 to before d1b5fd969cc53f29d02b82b05a45135de4a6087a` (git)
  - affected: `78c91ae2c6deb5d236a5a93ff2995cdd05514380 to before 9e95b1a94c9c49b4ba722251bbca2759b9c51737` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.13`
  - unaffected: `before 6.13` (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

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0020, the 9th 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-2026-98595](https://www.cve.org/CVERecord?id=CVE-2026-98595)
- [NVD: CVE-2026-98595](https://nvd.nist.gov/vuln/detail/CVE-2026-98595)

### References from the CNA

- <https://git.kernel.org/stable/c/c21daf37d5ce9a4e234b7c42238ac1e6041e28e4>
- <https://git.kernel.org/stable/c/d1b5fd969cc53f29d02b82b05a45135de4a6087a>
- <https://git.kernel.org/stable/c/9e95b1a94c9c49b4ba722251bbca2759b9c51737>

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-2026-98595>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98595/>. Everything for agents: <https://agentprime.io/llms.txt>.