CVE-2026-17270: IBM i is Affected By Multiple Vulnerabilities in Debug Server
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to cause a denial of service due to a stack-based buffer overflow.
Other sources
IBM i could allow a local attacker to cause a denial of service due to a stack-based buffer overflow.
— IBM
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
IBM i 7.6 (Release 5770-SS1)to a version that resolves this vulnerability.Fixed in 7.6Patch SJ11305 - Upgrade
Upgrade
IBM i 7.5 (Release 5770-SS1)to a version that resolves this vulnerability.Fixed in 7.5Patch SJ11306 - Upgrade
Upgrade
IBM i 7.4 (Release 5770-SS1)to a version that resolves this vulnerability.Fixed in 7.4Patch SJ11307 - Upgrade
Upgrade
IBM i 7.3 (Release 5770-SS1)to a version that resolves this vulnerability.Fixed in 7.3Patch SJ11308
Event History
Frequently Asked Questions
What access does an attacker need to exploit this issue?
The issue requires local attacker access to an affected IBM i system.
What is the documented impact of successful exploitation?
Successful exploitation could cause a denial of service through a stack-based buffer overflow.