# sctp: fix a TOCTOU race in SCTP_CMD_TIMER_START

CVE record · `CVE-2026-98130`

- **Identifiers:** `CVE-2026-98130`
- **State:** Confirmed
- **Severity:** CVSS 8.1 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Sept 2026, 10:36 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: `20a785aa52c82246055a089e55df9dac47d67da1 to before cbf2df9aac4202f9fb0b361a7fe8c79b29fad92c` (git)
  - affected: `20a785aa52c82246055a089e55df9dac47d67da1 to before 3205a20f837f5b1f009427ac3d9f706bf8a6fbec` (git)
  - affected: `20a785aa52c82246055a089e55df9dac47d67da1 to before 755d70ca845fd9b87c7b338ae6ae832b08cd0005` (git)
  - affected: `20a785aa52c82246055a089e55df9dac47d67da1 to before 09e7f9290d63178f56095d5c18fb9f9470153db5` (git)
  - affected: `20a785aa52c82246055a089e55df9dac47d67da1 to before e42ba56281ca3ae2dcb3558bebee9a1c9a4831d9` (git)
  - affected: `20a785aa52c82246055a089e55df9dac47d67da1 to before 00b841bac10230c557be6b38efc48508198fe23e` (git)
  - affected: `20a785aa52c82246055a089e55df9dac47d67da1 to before 3d698d1e6c8bc41e3e1707777a016f1bdd07842d` (git)
  - affected: `20a785aa52c82246055a089e55df9dac47d67da1 to before 2188569e7e1b0bc3f3b557dc97ab7a02befc11c8` (git)
  - affected: `9c0a4652f750afe3b4468cbcd9335b244ce2facd` (git)
  - affected: `70989e501fbce502198d82da88358ce453575a05` (git)
  - affected: `085bb270b4b1168c93afb37bbafc881207d15443` (git)
  - affected: `4.19.126 to before 4.20` (semver)
  - and 2 more
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.7`
  - unaffected: `before 5.7` (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: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.7 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0045, the 39th percentile, on 11 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 25 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98130](https://www.cve.org/CVERecord?id=CVE-2026-98130)
- [NVD: CVE-2026-98130](https://nvd.nist.gov/vuln/detail/CVE-2026-98130)

### References from the CNA

- <https://git.kernel.org/stable/c/cbf2df9aac4202f9fb0b361a7fe8c79b29fad92c>
- <https://git.kernel.org/stable/c/3205a20f837f5b1f009427ac3d9f706bf8a6fbec>
- <https://git.kernel.org/stable/c/755d70ca845fd9b87c7b338ae6ae832b08cd0005>
- <https://git.kernel.org/stable/c/09e7f9290d63178f56095d5c18fb9f9470153db5>
- <https://git.kernel.org/stable/c/e42ba56281ca3ae2dcb3558bebee9a1c9a4831d9>
- <https://git.kernel.org/stable/c/00b841bac10230c557be6b38efc48508198fe23e>
- <https://git.kernel.org/stable/c/3d698d1e6c8bc41e3e1707777a016f1bdd07842d>
- <https://git.kernel.org/stable/c/2188569e7e1b0bc3f3b557dc97ab7a02befc11c8>

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-2026-98130>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98130/>. Everything for agents: <https://agentprime.io/llms.txt>.