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-2026-84246

CVE-2026-84246CRITICAL

IBM Guardium Data Protection — Multiple vulnerabilities affect the Sniffer component as part of IBM Guardium Data Protection

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  H  H  H    9.8   .0038   30.5     —

AFFECTED
  Product                   Versions  Fixed
  Guardium Data Protection  12.0 –    —

TIMELINE
  Sep 1   Reserved by ibm
  Oct 8   Published (CNA: ibm)
  Oct 14  RESCORED — CVE-2026-84246 (IBM Guardium Data Protection). CVSS 8.1 → 9.8 (NVD).

CWE-120 · CNA: ibm · CVSS v3.1 · 1 reference · NVD status: Analyzed

Description

IBM Guardium Data Protection 12.0, 12.1, and 12.2 could allow a remote attacker to execute arbitrary code due to a buffer overflow.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 1, 2026	Reserved	Reserved by ibm
October 8, 2026	Published	Published (CNA: ibm)
October 14, 2026	RESCORED	RESCORED — CVE-2026-84246 (IBM Guardium Data Protection). CVSS 8.1 → 9.8 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
IBM	Guardium Data Protection	—	12.0	—

Weaknesses

CWE-120

References (1)

https://www.ibm.com/support/pages/node/7291674 [Patch, Vendor Advisory]

Authoritative record: CVE-2026-84246 at cve.org

Vendors: ibm

Weaknesses: CWE-120

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-84246 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.