CVE-2026-18869
IBM i is Affected By Denial of Service and Security Restriction Bypass Vulnerabilities in FTP [, ]
MEDIUM
6.4
CVSS Score
Published: September 18, 2026 at 07:21 PM UTC
Updated: September 22, 2026 at 07:51 PM UTC
1 product affected across 1 vendorI
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Severity
MEDIUM6.4
Exploit prediction
EPSS 0.3%
SSVC
No known exploit
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
6.4MEDIUMibm
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality
- LOW
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusAWAITING ANALYSIS
CWE
CWE-918
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