CVE-2026-16975: CWE-787 Out-of-bounds Write
CVE-2026-16975 is a high-severity vulnerability in IBM i versions 7.3, 7.4, 7.5, and 7.6. It involves a heap-based buffer overflow that could allow a remote authenticated attacker to execute arbitrary code. The vulnerability has a CVSS score of 8.8, indicating a significant risk to confidentiality, integrity, and availability. No official patch or remediation guidance has been provided yet by the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
IBM i versions 7.3 through 7.6 contain a heap-based buffer overflow vulnerability (CWE-787) that can be triggered by a remote attacker with authentication privileges. Successful exploitation could lead to arbitrary code execution on the affected system. The vulnerability is identified as CVE-2026-16975 and has a CVSS 3.1 base score of 8.8, reflecting high impact across confidentiality, integrity, and availability. The vendor has not published an official fix or remediation level at this time.
Potential Impact
An attacker who is remotely authenticated could exploit this heap-based buffer overflow to execute arbitrary code, potentially leading to full compromise of the affected IBM i system. The vulnerability affects system confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict remote authenticated access to trusted users only and monitor for unusual activity related to IBM i systems.
CVE-2026-16975: CWE-787 Out-of-bounds Write
Description
CVE-2026-16975 is a high-severity vulnerability in IBM i versions 7.3, 7.4, 7.5, and 7.6. It involves a heap-based buffer overflow that could allow a remote authenticated attacker to execute arbitrary code. The vulnerability has a CVSS score of 8.8, indicating a significant risk to confidentiality, integrity, and availability. No official patch or remediation guidance has been provided yet by the vendor. There are no known exploits in the wild at this time.
CVSS v3.1
Score 8.8high
Affected software
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
IBM i versions 7.3 through 7.6 contain a heap-based buffer overflow vulnerability (CWE-787) that can be triggered by a remote attacker with authentication privileges. Successful exploitation could lead to arbitrary code execution on the affected system. The vulnerability is identified as CVE-2026-16975 and has a CVSS 3.1 base score of 8.8, reflecting high impact across confidentiality, integrity, and availability. The vendor has not published an official fix or remediation level at this time.
Potential Impact
An attacker who is remotely authenticated could exploit this heap-based buffer overflow to execute arbitrary code, potentially leading to full compromise of the affected IBM i system. The vulnerability affects system confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict remote authenticated access to trusted users only and monitor for unusual activity related to IBM i systems.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-24T08:33:15.673Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7e2503bf8831d539bec0e1
Added to database: 08/13/2026, 20:11:47 UTC
Last enriched: 08/13/2026, 20:26:58 UTC
Last updated: 08/13/2026, 22:09:16 UTC
Views: 4
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