# nfc: st21nfca: validate received frame size

CVE record · `CVE-2026-98582`

- **Identifiers:** `CVE-2026-98582`
- **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, 15:18 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: `3096e25a3e40b73afd59e46f3bf8d84f919992a1 to before 8934d2889ae16a7c77520e002398d0689c1ecea5` (git)
  - affected: `3096e25a3e40b73afd59e46f3bf8d84f919992a1 to before d0596ee6c4b928a5c288790522a7495ee867da72` (git)
  - affected: `3096e25a3e40b73afd59e46f3bf8d84f919992a1 to before f526c218a149a30f110ce434ff17e033042404b8` (git)
  - affected: `3096e25a3e40b73afd59e46f3bf8d84f919992a1 to before d4008c3499dba7829bfe002edd99a8bff8ae3a7c` (git)
  - affected: `3096e25a3e40b73afd59e46f3bf8d84f919992a1 to before 91be5161f37b0a2795ad6806d69be5fa74522e5c` (git)
  - affected: `3096e25a3e40b73afd59e46f3bf8d84f919992a1 to before 57919d0662d8856211b794140172e51ca389f23d` (git)
  - affected: `3096e25a3e40b73afd59e46f3bf8d84f919992a1 to before 7b996cc06dda54c02a5aa607bda01109f0ac51e6` (git)
  - affected: `3096e25a3e40b73afd59e46f3bf8d84f919992a1 to before a653c01ce447f10c36b901646888c0330363af4f` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.16`
  - unaffected: `before 3.16` (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

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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98582](https://www.cve.org/CVERecord?id=CVE-2026-98582)
- [NVD: CVE-2026-98582](https://nvd.nist.gov/vuln/detail/CVE-2026-98582)

### References from the CNA

- <https://git.kernel.org/stable/c/8934d2889ae16a7c77520e002398d0689c1ecea5>
- <https://git.kernel.org/stable/c/d0596ee6c4b928a5c288790522a7495ee867da72>
- <https://git.kernel.org/stable/c/f526c218a149a30f110ce434ff17e033042404b8>
- <https://git.kernel.org/stable/c/d4008c3499dba7829bfe002edd99a8bff8ae3a7c>
- <https://git.kernel.org/stable/c/91be5161f37b0a2795ad6806d69be5fa74522e5c>
- <https://git.kernel.org/stable/c/57919d0662d8856211b794140172e51ca389f23d>
- <https://git.kernel.org/stable/c/7b996cc06dda54c02a5aa607bda01109f0ac51e6>
- <https://git.kernel.org/stable/c/a653c01ce447f10c36b901646888c0330363af4f>

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-2026-98582>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98582/>. Everything for agents: <https://agentprime.io/llms.txt>.