CVE-2026-18078: CWE-190 Integer Overflow or Wraparound
Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to cause a denial of service due to an integer overflow.
CVSS v3.1
Score 4.3medium
Affected software
IBM
cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18078 is an integer overflow vulnerability (CWE-190) affecting IBM i operating system versions 7.3, 7.4, 7.5, and 7.6. This flaw could be exploited by a remote attacker with authentication privileges to trigger a denial of service condition. The vulnerability does not impact confidentiality or integrity but affects availability. The CVSS v3.1 vector indicates network attack vector, low attack complexity, required privileges, no user interaction, and unchanged scope.
Potential Impact
An authenticated remote attacker could exploit this integer overflow to cause a denial of service, impacting system availability. There is no indication of confidentiality or integrity compromise. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been documented at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-28T15:18:32.460Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9af3e1acd9273b49e2f967
Added to database: 09/04/2026, 16:37:53 UTC
Last enriched: 09/07/2026, 12:05:36 UTC
Last updated: 10/18/2026, 06:48:16 UTC
Views: 81
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