Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-18249

CVE-2026-18249CRITICAL

IBM i Is Affected By Multiple Vulnerabilities in IBM Java SDK and IBM Java Runtime

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   L   N  C  H  H  L    9.9   .0039   30.6     —

AFFECTED
  Product  Versions  Fixed
  i        7.6 –     —

TIMELINE
  Jul 29  Reserved by ibm
  Aug 13  Published (CNA: ibm)
  Aug 19  RESCORED — CVE-2026-18249 (IBM i). CVSS 8.4 → 9.9 (NVD).

CWE-269 · CNA: ibm · CVSS v3.1 · 1 reference · NVD status: Analyzed

Description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to gain elevated privileges due to improper validation of pointers read from Java-controlled addresses.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
July 29, 2026	Reserved	Reserved by ibm
August 13, 2026	Published	Published (CNA: ibm)
August 19, 2026	RESCORED	RESCORED — CVE-2026-18249 (IBM i). CVSS 8.4 → 9.9 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
IBM	i	—	7.6	—

Weaknesses

CWE-269

References (1)

https://www.ibm.com/support/pages/node/7283283 [Vendor Advisory]

Authoritative record: CVE-2026-18249 at cve.org

Vendors: ibm

Weaknesses: CWE-269

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-18249 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 Sunday, October 4, 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.