boxscore/security
CVE · referencelatest edition

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.

CVE-2025-37997MEDIUM
Linux Linux — netfilter: ipset: fix region locking in hash types
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0016    5.3     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    5dd9488ae41070b69d2f4acb580f77db5705f9ca –  —
  Linux    5.6 –                                       5.4.294
TIMELINE
  Apr 16  Reserved by Linux
  May 29  Published (CNA: Linux)
  Jul 30  RESCORED — CVE-2025-37997 (Linux). CVSS 7.8 → 5.5 (NVD).
CWE-667 · CNA: Linux · CVSS v3.1 · 10 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix region locking in hash types Region locking introduced in v5.6-rc4 contained three macros to handle the region locks: ahash_bucket_start(), ahash_bucket_end() which gave back the start and end hash bucket values belonging to a given region lock and ahash_region() which should give back the region lock belonging to a given hash bucket. The latter was incorrect which can lead to a race condition between the garbage collector and adding new elements when a hash type of set is defined with timeouts.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
April 16, 2025ReservedReserved by Linux
May 29, 2025PublishedPublished (CNA: Linux)
July 30, 2026RESCOREDRESCORED — CVE-2025-37997 (Linux). CVSS 7.8 → 5.5 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinux5dd9488ae41070b69d2f4acb580f77db5705f9ca
LinuxLinux5.65.4.294

Weaknesses

CWE-667

References (10)

Related

Authoritative record: CVE-2025-37997 at cve.org

Vendors: linux

Weaknesses: CWE-667

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-37997 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.