Vulnerability · Published Aug 13, 2026 · Assigned by ibm
CVE-2026-16896IBM i is Affected By Multiple Vulnerabilities in Network Authentication Service
High 7.1
In plain English
A high-severity security flaw in i from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).
Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.1%top 99.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
Weakness: CWE-367 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
References
- https://www.ibm.com/support/pages/node/7283293 vendor-advisory, patch