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9.8

IBM Navigator for i Credentials Harvested Remotely

CVE-2026-18847 · published 2 months ago
Summary

IBM's Navigator for i tool, used with IBM i 7.6, 7.5, 7.4, and 7.3 systems, allows an attacker to steal user credentials without needing a password. This could lead to unauthorized access to sensitive data and systems. IBM recommends upgrading to the latest version of Navigator for i to fix this issue.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
ibm i 7.6
7.3
7.4
7.5
Original advisory text
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote unauthenticated attacker to harvest credentials due to spoofing of Navigator for i.
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote unauthenticated attacker to harvest credentials due to spoofing of Navigator for i.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
9.8 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-346Origin Validation Error
Timeline
Published12 Aug 2026
Updated4 Nov 2026
First seen12 Aug 2026
Sources
CVE-2026-18847 · NVD
CVE-2026-18847 · MITRE
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