# wifi: nl80211: fix NL80211_ATTR_MLO_LINK_ID off-by-one

CVE record · `CVE-2024-56663`

- **Identifiers:** `CVE-2024-56663`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-193](https://cwe.mitre.org/data/definitions/193.html)
- **Tags:** [CWE-193](https://agentprime.io/advisories/tag/cwe-193.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 27 Dec 2024
- **Updated:** 5 Aug 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 27 Dec 2024, 15:06 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: `7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 to before 29e640ae641b9f5ffc666049426d2b16c98d9963` (git)
  - affected: `7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 to before f3412522f78826fef1dfae40ef378a863df2591c` (git)
  - affected: `7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 to before f850d1d9f1106f528dfc5807565f2d1fa9a397d3` (git)
  - affected: `7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 to before 2e3dbf938656986cce73ac4083500d0bcfbffe24` (git)
  - affected: `7a53ad13c09150076b7ddde96c2dfc5622c90b45` (git)
  - affected: `5.19.2 to before 5.20` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.0`
  - unaffected: `before 6.0` (semver)
  - unaffected: `6.1.121 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.67 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.6 to 6.12.*, inclusive` (semver)
  - unaffected: `6.13 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) (used for this record)
- 7.1 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H`, from ADP (CISA-ADP)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0023, the 13th percentile, on 5 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 27 Dec 2024. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2024-56663](https://www.cve.org/CVERecord?id=CVE-2024-56663)
- [NVD: CVE-2024-56663](https://nvd.nist.gov/vuln/detail/CVE-2024-56663)

### References from the CNA

- <https://git.kernel.org/stable/c/29e640ae641b9f5ffc666049426d2b16c98d9963>
- <https://git.kernel.org/stable/c/f3412522f78826fef1dfae40ef378a863df2591c>
- <https://git.kernel.org/stable/c/f850d1d9f1106f528dfc5807565f2d1fa9a397d3>
- <https://git.kernel.org/stable/c/2e3dbf938656986cce73ac4083500d0bcfbffe24>

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-2024-56663>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2024-56663/>. Everything for agents: <https://agentprime.io/llms.txt>.