# cifs: some missing initializations on replay

CVE record · `CVE-2026-31693`

- **Identifiers:** `CVE-2026-31693`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-665](https://cwe.mitre.org/data/definitions/665.html)
- **Tags:** [CWE-665](https://agentprime.io/advisories/tag/cwe-665.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 30 Apr 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 30 Apr 2026, 11:47 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: `433042a91f9373241307725b52de573933ffedbf to before c854ab481ece4b3e5f4c2e8b22824f015ff874a5` (git)
  - affected: `4f1fffa2376922f3d1d506e49c0fd445b023a28e to before 1d731e512134495e0ef490ade0e4d91dc0d515ec` (git)
  - affected: `4f1fffa2376922f3d1d506e49c0fd445b023a28e to before 7c9ce68192eef14c777cb6ce17155d2eb2431aea` (git)
  - affected: `4f1fffa2376922f3d1d506e49c0fd445b023a28e to before c99e160938b627f6f28edee930e8abc157e84386` (git)
  - affected: `4f1fffa2376922f3d1d506e49c0fd445b023a28e to before 14f66f44646333d2bfd7ece36585874fd72f8286` (git)
  - affected: `6.6.32 to before 6.6.128` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.8`
  - unaffected: `before 6.8` (semver)
  - unaffected: `6.6.128 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.75 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.16 to 6.18.*, inclusive` (semver)
  - unaffected: `6.19.6 to 6.19.*, inclusive` (semver)
  - unaffected: `7.0 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0017, the 6th percentile, on 6 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 30 Apr 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-31693](https://www.cve.org/CVERecord?id=CVE-2026-31693)
- [NVD: CVE-2026-31693](https://nvd.nist.gov/vuln/detail/CVE-2026-31693)

### References from the CNA

- <https://git.kernel.org/stable/c/c854ab481ece4b3e5f4c2e8b22824f015ff874a5>
- <https://git.kernel.org/stable/c/1d731e512134495e0ef490ade0e4d91dc0d515ec>
- <https://git.kernel.org/stable/c/7c9ce68192eef14c777cb6ce17155d2eb2431aea>
- <https://git.kernel.org/stable/c/c99e160938b627f6f28edee930e8abc157e84386>
- <https://git.kernel.org/stable/c/14f66f44646333d2bfd7ece36585874fd72f8286>

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-2026-31693>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-31693/>. Everything for agents: <https://agentprime.io/llms.txt>.