CVE-2026-16987

IBM i is Affected By An Improper Validation Vulnerability in PASE []

Assigner: ibm
Reserved: 24.07.2026 Published: 13.08.2026 Updated: 14.08.2026

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to gain elevated privileges due to improper validation of the LANG environment variable.

Metrics

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 8.8

Attack Vector	Local	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	IBM
Product	i
Versions	Version 7.6 is affected Version 7.5 is affected Version 7.4 is affected Version 7.3 is affected

Vendor

IBM

Product

Versions

Version 7.6 is affected
Version 7.5 is affected
Version 7.4 is affected
Version 7.3 is affected

Solutions

IBM strongly recommends addressing the vulnerability now.

IBM i Release5770-SS1 Option 33 PTF Number(s)PTF Download Link(s)7.6SJ10846 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10846 7.5SJ10847 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10847 7.4SJ10852 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10852 7.3SJ10854 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10854

IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.

References

Problem Types