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-2023-53680HIGH
Linux Linux — NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  H  H  H    7.8   .0028   20.4     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8 –  —
  Linux    4.14 –                                      5.10.220
TIMELINE
  Oct 7   Reserved by Linux
  Oct 7   Published (CNA: Linux)
  Aug 4   RESCORED — CVE-2023-53680 (Linux). CVSS 7.5 → 7.8 (NVD).
CWE-787 · CNA: Linux · CVSS v3.1 · 5 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL OPDESC() simply indexes into nfsd4_ops[] by the op's operation number, without range checking that value. It assumes callers are careful to avoid calling it with an out-of-bounds opnum value. nfsd4_decode_compound() is not so careful, and can invoke OPDESC() with opnum set to OP_ILLEGAL, which is 10044 -- well beyond the end of nfsd4_ops[].

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
October 7, 2025ReservedReserved by Linux
October 7, 2025PublishedPublished (CNA: Linux)
August 4, 2026RESCOREDRESCORED — CVE-2023-53680 (Linux). CVSS 7.5 → 7.8 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinuxf4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8
LinuxLinux4.145.10.220

Weaknesses

CWE-787

References (5)

Related

Authoritative record: CVE-2023-53680 at cve.org

Vendors: linux

Weaknesses: CWE-787

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-53680 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.