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-2025-39872MEDIUM
Linux Linux — hsr: hold rcu and dev lock for hsr_get_port_ndev
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0014    4.0     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    ef964411c8ca775967355d855abc56aeaca3c867 –  —
  Linux    6.14 –                                      6.12.64
TIMELINE
  Apr 16  Reserved by Linux
  Sep 23  Published (CNA: Linux)
  Jul 30  RESCORED — CVE-2025-39872 (Linux). CVSS 7.8 → 5.5 (NVD).
CNA: Linux · CVSS v3.1 · 3 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: hsr: hold rcu and dev lock for hsr_get_port_ndev hsr_get_port_ndev calls hsr_for_each_port, which need to hold rcu lock. On the other hand, before return the port device, we need to hold the device reference to avoid UaF in the caller function.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
April 16, 2025ReservedReserved by Linux
September 23, 2025PublishedPublished (CNA: Linux)
July 30, 2026RESCOREDRESCORED — CVE-2025-39872 (Linux). CVSS 7.8 → 5.5 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinuxef964411c8ca775967355d855abc56aeaca3c867
LinuxLinux6.146.12.64

References (3)

Related

Authoritative record: CVE-2025-39872 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-2025-39872 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.