Medium severity · published Oct 16, 2026
CVE-2026-17073
IBM i is Affected By Improper Authorization and Access Control Vulnerabilities in Network File System
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
IBM i 7.3, 7.4, 7.5, and 7.6 could allow a local attacker to obtain sensitive information due to missing subtree checks during file handle resolution.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
I
i · IBM
7.6; 7.5; 7.4; 7.3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-17073
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-17073
Vendor Advisory
https://www.ibm.com/support/pages/node/7292423
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