# net: ipconfig: bound DHCP option construction

CVE record · `CVE-2026-98493`

- **Identifiers:** `CVE-2026-98493`
- **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:** 30 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: `130c0f47fdf9c533deb1136cad5136f6cb7020f0 to before e0a221cec0e0ee437680ae0314a4b166509442c5` (git)
  - affected: `130c0f47fdf9c533deb1136cad5136f6cb7020f0 to before ca811550b9fa87e02845b4a332d194c2304d933f` (git)
  - affected: `130c0f47fdf9c533deb1136cad5136f6cb7020f0 to before d8016c82acdd7eaa462e1f38a962b15d8c6a650b` (git)
  - affected: `130c0f47fdf9c533deb1136cad5136f6cb7020f0 to before 38a6a118260ebfc82d0c653194d616bdfbd236ac` (git)
  - affected: `130c0f47fdf9c533deb1136cad5136f6cb7020f0 to before abcba6f080c63e403037ecdffde43170d242376a` (git)
  - affected: `130c0f47fdf9c533deb1136cad5136f6cb7020f0 to before 24e79508b237dd2a69bc6fb6ac5cf7f126178307` (git)
  - affected: `130c0f47fdf9c533deb1136cad5136f6cb7020f0 to before cbaad2922bd5d4d303055ae9afecc8999e6b40c9` (git)
  - affected: `130c0f47fdf9c533deb1136cad5136f6cb7020f0 to before e47a1958e12abc3a17b5231a4f21c8f1bf662e08` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.36`
  - unaffected: `before 2.6.36` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0021, the 11th 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-2026-98493](https://www.cve.org/CVERecord?id=CVE-2026-98493)
- [NVD: CVE-2026-98493](https://nvd.nist.gov/vuln/detail/CVE-2026-98493)

### References from the CNA

- <https://git.kernel.org/stable/c/e0a221cec0e0ee437680ae0314a4b166509442c5>
- <https://git.kernel.org/stable/c/ca811550b9fa87e02845b4a332d194c2304d933f>
- <https://git.kernel.org/stable/c/d8016c82acdd7eaa462e1f38a962b15d8c6a650b>
- <https://git.kernel.org/stable/c/38a6a118260ebfc82d0c653194d616bdfbd236ac>
- <https://git.kernel.org/stable/c/abcba6f080c63e403037ecdffde43170d242376a>
- <https://git.kernel.org/stable/c/24e79508b237dd2a69bc6fb6ac5cf7f126178307>
- <https://git.kernel.org/stable/c/cbaad2922bd5d4d303055ae9afecc8999e6b40c9>
- <https://git.kernel.org/stable/c/e47a1958e12abc3a17b5231a4f21c8f1bf662e08>

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-2026-98493>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98493/>. Everything for agents: <https://agentprime.io/llms.txt>.