Medium severity · published Sep 18, 2026
CVE-2026-18869
IBM i is Affected By Denial of Service and Security Restriction Bypass Vulnerabilities in FTP [, ]
6.4
CVSS
0.3%
EPSS
No
On KEV
Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to bypass security restrictions and access internal network services due to improper validation of FTP PORT and EPRT commands.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% 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
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18869
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18869
www.ibm.com
https://www.ibm.com/support/pages/node/7287873
More from i
10.0
CVE-2026-18193
IBM i Is Affected By Multiple Vulnerabilities in IBM Java SDK and IBM Java Runtime
9.9
CVE-2026-96119
IBM i is Affected By An Improper Control of Code Generation Vulnerability in HTTP Server Administration GUI
9.9
CVE-2026-18249
IBM i Is Affected By Multiple Vulnerabilities in IBM Java SDK and IBM Java Runtime
9.9
CVE-2026-16860
IBM i is Affected By Remote Code Execution Vulnerability []
9.9
CVE-2026-17276
IBM i is Affected By Multiple Vulnerabilities in Navigator for i