# pfcp: make sure the SEID is linear before reading it

CVE record · `CVE-2026-98952`

- **Identifiers:** `CVE-2026-98952`
- **State:** Confirmed
- **Severity:** CVSS 7.3 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 23 Oct 2026
- **Updated:** 24 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 23 Oct 2026, 12:19 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: `6dd514f48110ebb4bf36875b9e7e02d07b589caa to before 3192a5e398c64d48aad64a09e29643e327369bc4` (git)
  - affected: `6dd514f48110ebb4bf36875b9e7e02d07b589caa to before b18a6496495495e2dc27e525aa3315a0c59b9513` (git)
  - affected: `6dd514f48110ebb4bf36875b9e7e02d07b589caa to before 2fb6d05f706d79bbdc88835be2f4f45ab56dd819` (git)
  - affected: `6dd514f48110ebb4bf36875b9e7e02d07b589caa to before 23609bce9e1de525d1d0e73fc68c6e7971d0b49e` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.10`
  - unaffected: `before 6.10` (semver)
  - unaffected: `6.12.113 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.57 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.11 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0038, the 31st 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 23 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98952](https://www.cve.org/CVERecord?id=CVE-2026-98952)
- [NVD: CVE-2026-98952](https://nvd.nist.gov/vuln/detail/CVE-2026-98952)

### References from the CNA

- <https://git.kernel.org/stable/c/3192a5e398c64d48aad64a09e29643e327369bc4>
- <https://git.kernel.org/stable/c/b18a6496495495e2dc27e525aa3315a0c59b9513>
- <https://git.kernel.org/stable/c/2fb6d05f706d79bbdc88835be2f4f45ab56dd819>
- <https://git.kernel.org/stable/c/23609bce9e1de525d1d0e73fc68c6e7971d0b49e>

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-2026-98952>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-98952/>. Everything for agents: <https://agentprime.io/llms.txt>.