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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-2023-52923MEDIUM
Linux Linux — netfilter: nf_tables: adapt set backend to use GC transaction API
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0026   17.6     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    9d0982927e79049675cb6c6c04a0ebb3dad5a434 –  —
  Linux    4.1 –                                       4.19.316
TIMELINE
  Aug 21  Reserved by Linux
  Jan 20  Published (CNA: Linux)
  Aug 4   RESCORED — CVE-2023-52923 (Linux). CVSS 7.8 → 5.5 (NVD).
CNA: Linux · CVSS v3.1 · 7 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: adapt set backend to use GC transaction API Use the GC transaction API to replace the old and buggy gc API and the busy mark approach. No set elements are removed from async garbage collection anymore, instead the _DEAD bit is set on so the set element is not visible from lookup path anymore. Async GC enqueues transaction work that might be aborted and retried later. rbtree and pipapo set backends does not set on the _DEAD bit from the sync GC path since this runs in control plane path where mutex is held. In this case, set elements are deactivated, removed and then released via RCU callback, sync GC never fails.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
August 21, 2024ReservedReserved by Linux
January 20, 2025PublishedPublished (CNA: Linux)
August 4, 2026RESCOREDRESCORED — CVE-2023-52923 (Linux). CVSS 7.8 → 5.5 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinux9d0982927e79049675cb6c6c04a0ebb3dad5a434
LinuxLinux4.14.19.316

References (7)

Related

Authoritative record: CVE-2023-52923 at cve.org

Vendors: linux

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-52923 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.