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-2023-52513MEDIUM
Linux Linux — RDMA/siw: Fix connection failure handling
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0066   48.9     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    6c52fdc244b5ccc468006fd65a504d4ee33743c7 –  —
  Linux    5.3 –                                       5.4.258
TIMELINE
  Feb 20  Reserved by Linux
  Mar 2   Published (CNA: Linux)
  Aug 4   RESCORED — CVE-2023-52513 (Linux). CVSS 7.5 → 5.5 (NVD).
CWE-476 · CNA: Linux · CVSS v3.1 · 6 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix connection failure handling In case immediate MPA request processing fails, the newly created endpoint unlinks the listening endpoint and is ready to be dropped. This special case was not handled correctly by the code handling the later TCP socket close, causing a NULL dereference crash in siw_cm_work_handler() when dereferencing a NULL listener. We now also cancel the useless MPA timeout, if immediate MPA request processing fails. This patch furthermore simplifies MPA processing in general: Scheduling a useless TCP socket read in sk_data_ready() upcall is now surpressed, if the socket is already moved out of TCP_ESTABLISHED state.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
February 20, 2024ReservedReserved by Linux
March 2, 2024PublishedPublished (CNA: Linux)
August 4, 2026RESCOREDRESCORED — CVE-2023-52513 (Linux). CVSS 7.5 → 5.5 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinux6c52fdc244b5ccc468006fd65a504d4ee33743c7
LinuxLinux5.35.4.258

Weaknesses

CWE-476

References (6)

Related

Authoritative record: CVE-2023-52513 at cve.org

Vendors: linux

Weaknesses: CWE-476

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-52513 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.