IBM i (7.6-7.3) Buffer Overflow Enables DoS & Integrity Compromise
CVE-2026-17207 Published on September 4, 2026
IBM i is Affected By Denial of Service Vulnerabilities in NFS [, ]
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service and compromise integrity due to a buffer overflow.
Vulnerability Analysis
CVE-2026-17207 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity and availability.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2026-17207 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2026-17207
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Affected Versions
IBM i:- Version 7.6 is affected.
- Version 7.5 is affected.
- Version 7.4 is affected.
- Version 7.3 is affected.