CVE-2026-16896

HIGH CVSS 3.1: 4.7 EPSS 0.07%
Updated Aug 17, 2026
IBM
Parameter Value
CVSS 4.7 (HIGH)
Type CWE-367 (Time-of-check Time-of-use (TOCTOU))
Vendor IBM
Public PoC No

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to obtain unauthorized access to files due to a time-of-check time-of-use (TOCTOU) race condition.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
High
Difficult to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Vulnerable Products 4

Configuration From (including) Up to (excluding)
Ibm I
cpe:2.3:o:ibm:i:7.3:*:*:*:*:*:*:*
Ibm I
cpe:2.3:o:ibm:i:7.4:*:*:*:*:*:*:*
Ibm I
cpe:2.3:o:ibm:i:7.5:*:*:*:*:*:*:*
Ibm I
cpe:2.3:o:ibm:i:7.6:*:*:*:*:*:*:*