# sctp: check RCV_SHUTDOWN after the sendmsg connect wait

CVE record · `CVE-2026-98846`

- **Identifiers:** `CVE-2026-98846`
- **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, 15:50 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: `668c9beb9020d5834ee9e43c208190a07d2b1928 to before 7f798168c54455559da0f7a377a23ab7019fec35` (git)
  - affected: `668c9beb9020d5834ee9e43c208190a07d2b1928 to before fe5a23c76fc48b711eb7d6f3462c994e34da36f9` (git)
  - affected: `668c9beb9020d5834ee9e43c208190a07d2b1928 to before 1e7cd89975fa3b11ebd7e1bbb4648a71c0e0e2d4` (git)
  - affected: `668c9beb9020d5834ee9e43c208190a07d2b1928 to before 1bef1944ef15a40797305bf916827b04df6307ca` (git)
  - affected: `668c9beb9020d5834ee9e43c208190a07d2b1928 to before e8f972b1759d26bbefe4c524caae1ed7c8a593bd` (git)
  - affected: `668c9beb9020d5834ee9e43c208190a07d2b1928 to before e701345d886e831fb593a0870d69c8c5de6fc938` (git)
  - affected: `668c9beb9020d5834ee9e43c208190a07d2b1928 to before 222c41e0f50f1d5028be9baf0e1dcfc0bfa7f669` (git)
  - affected: `668c9beb9020d5834ee9e43c208190a07d2b1928 to before 4f1da630d13de0370e2f6361f961f1c8b384af1c` (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: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.113 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.56 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.10 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:** 0.0017, the 6th percentile, on 7 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-2026-98846](https://www.cve.org/CVERecord?id=CVE-2026-98846)
- [NVD: CVE-2026-98846](https://nvd.nist.gov/vuln/detail/CVE-2026-98846)

### References from the CNA

- <https://git.kernel.org/stable/c/7f798168c54455559da0f7a377a23ab7019fec35>
- <https://git.kernel.org/stable/c/fe5a23c76fc48b711eb7d6f3462c994e34da36f9>
- <https://git.kernel.org/stable/c/1e7cd89975fa3b11ebd7e1bbb4648a71c0e0e2d4>
- <https://git.kernel.org/stable/c/1bef1944ef15a40797305bf916827b04df6307ca>
- <https://git.kernel.org/stable/c/e8f972b1759d26bbefe4c524caae1ed7c8a593bd>
- <https://git.kernel.org/stable/c/e701345d886e831fb593a0870d69c8c5de6fc938>
- <https://git.kernel.org/stable/c/222c41e0f50f1d5028be9baf0e1dcfc0bfa7f669>
- <https://git.kernel.org/stable/c/4f1da630d13de0370e2f6361f961f1c8b384af1c>

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-2026-98846>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98846/>. Everything for agents: <https://agentprime.io/llms.txt>.