What’s Vulnerable › Vulnerabilities
CVE-2026-18671: IBM i is Affected By Multiple Vulnerabilities in NetServer
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-13 · updated 2026-08-17
- Weakness: CWE-190
Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow an authenticated attacker to force a NetServer server thread exception, caused by an integer overflow during bounds checking in request processing. The attacker could exploit this vulnerability to cause a temporary denial of service.
Affected products
- IBM i: 7.3, 7.4, 7.5, 7.6
References
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