# ipv6: Prevent rt6_insert_exception() for dying fib6_info.

CVE record · `CVE-2026-98598`

- **Identifiers:** `CVE-2026-98598`
- **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: `cc5c073a693fa6ed7a207b0436114f68cce72434 to before 649ffc76ed5483b2caf35ed90d3787538efc4e53` (git)
  - affected: `cc5c073a693fa6ed7a207b0436114f68cce72434 to before e03e77071e75ce726d877f0a4349a28b6e1f487a` (git)
  - affected: `cc5c073a693fa6ed7a207b0436114f68cce72434 to before 0346ec2f080b40d95ed05b853bb9226289e75212` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.3`
  - unaffected: `before 5.3` (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-2026-98598](https://www.cve.org/CVERecord?id=CVE-2026-98598)
- [NVD: CVE-2026-98598](https://nvd.nist.gov/vuln/detail/CVE-2026-98598)

### References from the CNA

- <https://git.kernel.org/stable/c/649ffc76ed5483b2caf35ed90d3787538efc4e53>
- <https://git.kernel.org/stable/c/e03e77071e75ce726d877f0a4349a28b6e1f487a>
- <https://git.kernel.org/stable/c/0346ec2f080b40d95ed05b853bb9226289e75212>

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-2026-98598>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98598/>. Everything for agents: <https://agentprime.io/llms.txt>.