# netfilter: ip6t_rt: fix zero-address non-strict match out-of-bounds read

CVE record · `CVE-2026-98485`

- **Identifiers:** `CVE-2026-98485`
- **State:** Confirmed
- **Severity:** CVSS 7.1 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: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 959d1829d1ce8b91b435b24a923b51bcc8897090` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before fe336bab13834394320997de8b16ca4a913b4f13` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 5a54f8b7f7fe207a5c14713015a5820588faf1ad` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before b89249819a7d6698bed152feafd3bc6c08489d15` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before dd55c0ea87bf70e4e4b3b683acd29ef981335b26` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 191239b0939692e92459d8d32cad14247fa93f89` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before d9cf4ac6f326330e1fe4d95671d36a6ff3593f64` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 82313c169eddc02b1bf5ba6b427803e272d3ec42` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.12`
  - unaffected: `before 2.6.12` (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: `6.12.112 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0017, the 6th 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-2026-98485](https://www.cve.org/CVERecord?id=CVE-2026-98485)
- [NVD: CVE-2026-98485](https://nvd.nist.gov/vuln/detail/CVE-2026-98485)

### References from the CNA

- <https://git.kernel.org/stable/c/959d1829d1ce8b91b435b24a923b51bcc8897090>
- <https://git.kernel.org/stable/c/fe336bab13834394320997de8b16ca4a913b4f13>
- <https://git.kernel.org/stable/c/5a54f8b7f7fe207a5c14713015a5820588faf1ad>
- <https://git.kernel.org/stable/c/b89249819a7d6698bed152feafd3bc6c08489d15>
- <https://git.kernel.org/stable/c/dd55c0ea87bf70e4e4b3b683acd29ef981335b26>
- <https://git.kernel.org/stable/c/191239b0939692e92459d8d32cad14247fa93f89>
- <https://git.kernel.org/stable/c/d9cf4ac6f326330e1fe4d95671d36a6ff3593f64>
- <https://git.kernel.org/stable/c/82313c169eddc02b1bf5ba6b427803e272d3ec42>

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-2026-98485>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98485/>. Everything for agents: <https://agentprime.io/llms.txt>.