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HIGH · 8.4

CVE-2026-18249

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.

Vulnerability 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.

CVSS Score

8.4

HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
LOW

Affected Products

VendorProductVersions
IbmI7.3

Related Weaknesses (CWE)

CWE-269

References

FAQ

What is CVE-2026-18249?

CVE-2026-18249 is a vulnerability with a CVSS score of 8.4 (HIGH). 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.

How severe is CVE-2026-18249?

CVE-2026-18249 has been rated HIGH with a CVSS base score of 8.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-18249?

Check the references section above for vendor advisories and patch information. Affected products include: Ibm I.