# watchdog: rtd119x: Avoid division by zero

CVE record · `CVE-2026-98409`

- **Identifiers:** `CVE-2026-98409`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 14 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 14 Oct 2026, 13:27 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: `2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 to before b2876193a150301993ab2f88afde07568e4de9c7` (git)
  - affected: `2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 to before 5cfea211bd3440b1de0b2d7dc2809c6350a5b722` (git)
  - affected: `2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 to before d4ef7cf5d31c3cbc6f87721fb950ab10dadeee72` (git)
  - affected: `2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 to before 757c721545b9ffac5c3042a0cd3685ea28af7e81` (git)
  - affected: `2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 to before 1f22001b34984350844d629862f70934770cb796` (git)
  - affected: `2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 to before b4ede87765a2e58ca4f18f5f8037c4826b9cc93f` (git)
  - affected: `2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 to before 8a12e049d517d7dee78500633f8f0e47262a67e0` (git)
  - affected: `2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 to before 5af7d2cbd20f893def03c8310a460ade66a5d822` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.16`
  - unaffected: `before 4.16` (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: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.54 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.8 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:** 0.0022, the 12th 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 14 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98409](https://www.cve.org/CVERecord?id=CVE-2026-98409)
- [NVD: CVE-2026-98409](https://nvd.nist.gov/vuln/detail/CVE-2026-98409)

### References from the CNA

- <https://git.kernel.org/stable/c/b2876193a150301993ab2f88afde07568e4de9c7>
- <https://git.kernel.org/stable/c/5cfea211bd3440b1de0b2d7dc2809c6350a5b722>
- <https://git.kernel.org/stable/c/d4ef7cf5d31c3cbc6f87721fb950ab10dadeee72>
- <https://git.kernel.org/stable/c/757c721545b9ffac5c3042a0cd3685ea28af7e81>
- <https://git.kernel.org/stable/c/1f22001b34984350844d629862f70934770cb796>
- <https://git.kernel.org/stable/c/b4ede87765a2e58ca4f18f5f8037c4826b9cc93f>
- <https://git.kernel.org/stable/c/8a12e049d517d7dee78500633f8f0e47262a67e0>
- <https://git.kernel.org/stable/c/5af7d2cbd20f893def03c8310a460ade66a5d822>

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-2026-98409>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98409/>. Everything for agents: <https://agentprime.io/llms.txt>.