Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — netfilter: ipset: Hold module reference while requesting a module
AV AC PR UI S C I A CVSS EPSS %ile KEV
L H L N U N N H 4.7 .0018 7.6 —
AFFECTED
Product Versions Fixed
Linux a7b4f989a629493bb4ec4a354def784d440b32c4 – —
Linux 2.6.39 – 5.4.287
TIMELINE
Dec 27 Reserved by Linux
Dec 27 Published (CNA: Linux)
Aug 4 RESCORED — CVE-2024-56637 (Linux). CVSS 7.3 → 4.7 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ipset: Hold module reference while requesting a module
User space may unload ip_set.ko while it is itself requesting a set type
backend module, leading to a kernel crash. The race condition may be
provoked by inserting an mdelay() right after the nfnl_unlock() call.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| December 27, 2024 | Reserved | Reserved by Linux |
| December 27, 2024 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2024-56637 (Linux). CVSS 7.3 → 4.7 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | a7b4f989a629493bb4ec4a354def784d440b32c4 | — |
| Linux | Linux | — | 2.6.39 | 5.4.287 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-56637 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.