boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2021-44879

CVE-2021-44879MEDIUM
n/a n/a — In gc_data_segment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a move_data_page NULL …
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   N   R  U  N  N  H    5.5   .0148   73.5     —
AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —
TIMELINE
  Dec 13  Reserved by mitre
  Feb 13  Published (CNA: mitre)
  Oct 14  ENRICHED — CVE-2021-44879. Received CVSS 5.5 and CPE data from NVD.
  Oct 14  EXPLOIT PUBLISHED — CVE-2021-44879. Public exploit reference added.
CWE-476 · CNA: mitre · CVSS v3.1 · 10 references · NVD status: Modified

Description

In gc_data_segment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a move_data_page NULL pointer dereference.

Lifecycle

Complete event history — 4 events, chronological
DateEventDetail
December 13, 2021ReservedReserved by mitre
February 13, 2022PublishedPublished (CNA: mitre)
October 14, 2026ENRICHEDENRICHED — CVE-2021-44879. Received CVSS 5.5 and CPE data from NVD.
October 14, 2026EXPLOIT PUBLISHEDEXPLOIT PUBLISHED — CVE-2021-44879. Public exploit reference added.

Affected

Affected products and packages — 1 row
VendorProduct / PackageEcosystemVersion introducedFixed
n/an/a—n/a—

Weaknesses

CWE-476

References (10)

Related

Authoritative record: CVE-2021-44879 at cve.org

Weaknesses: CWE-476

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-44879 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 Monday, October 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.