# rds: ib: use rds_conn_drop() on protocol version mismatch

CVE record · `CVE-2026-98257`

- **Identifiers:** `CVE-2026-98257`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 6 Oct 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 6 Oct 2026, 08:45 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: `f147dd9ecabf23fd63d2562ffe64252a0453ecde to before 424019be3f637da76b74f44a40034669acbb166f` (git)
  - affected: `f147dd9ecabf23fd63d2562ffe64252a0453ecde to before 14fb90067d13f4494cff0f03243fae3cf2911cbc` (git)
  - affected: `f147dd9ecabf23fd63d2562ffe64252a0453ecde to before 344c72a0bc2703a6de4918ed935850e07dae3af2` (git)
  - affected: `f147dd9ecabf23fd63d2562ffe64252a0453ecde to before b5c9f2951d330d4a198a64d6e60f79b4bd6ef078` (git)
  - affected: `f147dd9ecabf23fd63d2562ffe64252a0453ecde to before d392b16acd0908f077289aad8bba066ff16de336` (git)
  - affected: `f147dd9ecabf23fd63d2562ffe64252a0453ecde to before 65ca0a5037152a5a80b8fe6aac80eb80458be573` (git)
  - affected: `f147dd9ecabf23fd63d2562ffe64252a0453ecde to before 7d8c22cb2cb1efb5e830a4545c76abf7b35cc2e8` (git)
  - affected: `f147dd9ecabf23fd63d2562ffe64252a0453ecde to before f97d8c7bab7843631206a114986c9059da03efeb` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.37`
  - unaffected: `before 2.6.37` (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: `6.18.54 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0050, the 43rd percentile, on 10 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 6 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98257](https://www.cve.org/CVERecord?id=CVE-2026-98257)
- [NVD: CVE-2026-98257](https://nvd.nist.gov/vuln/detail/CVE-2026-98257)

### References from the CNA

- <https://git.kernel.org/stable/c/424019be3f637da76b74f44a40034669acbb166f>
- <https://git.kernel.org/stable/c/14fb90067d13f4494cff0f03243fae3cf2911cbc>
- <https://git.kernel.org/stable/c/344c72a0bc2703a6de4918ed935850e07dae3af2>
- <https://git.kernel.org/stable/c/b5c9f2951d330d4a198a64d6e60f79b4bd6ef078>
- <https://git.kernel.org/stable/c/d392b16acd0908f077289aad8bba066ff16de336>
- <https://git.kernel.org/stable/c/65ca0a5037152a5a80b8fe6aac80eb80458be573>
- <https://git.kernel.org/stable/c/7d8c22cb2cb1efb5e830a4545c76abf7b35cc2e8>
- <https://git.kernel.org/stable/c/f97d8c7bab7843631206a114986c9059da03efeb>

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-2026-98257>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-98257/>. Everything for agents: <https://agentprime.io/llms.txt>.