CVE-2026-16975: CWE-787 Out-of-bounds Write
CVE-2026-16975 is a high severity vulnerability affecting 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 3.1 score of 8.8, indicating high impact on confidentiality, integrity, and availability. No official patch or remediation guidance is currently provided 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. Successful exploitation could lead to arbitrary code execution. The vulnerability is classified as high severity with a CVSS 3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). No vendor advisory or patch information is currently available, and no known exploits have been reported.
Potential Impact
An attacker with valid credentials could exploit this heap-based buffer overflow to execute arbitrary code remotely, potentially compromising the confidentiality, integrity, and availability of the affected IBM i systems. This could lead to full system compromise or disruption of services.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, limit access to trusted users and monitor for unusual activity related to IBM i systems. Avoid exposing affected versions to untrusted networks where possible.
CVE-2026-16975: CWE-787 Out-of-bounds Write
Description
CVE-2026-16975 is a high severity vulnerability affecting 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 3.1 score of 8.8, indicating high impact on confidentiality, integrity, and availability. No official patch or remediation guidance is currently provided by the vendor. There are no known exploits in the wild at this time.
CVSS v3.1
Score 8.8high
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
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. Successful exploitation could lead to arbitrary code execution. The vulnerability is classified as high severity with a CVSS 3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). No vendor advisory or patch information is currently available, and no known exploits have been reported.
Potential Impact
An attacker with valid credentials could exploit this heap-based buffer overflow to execute arbitrary code remotely, potentially compromising the confidentiality, integrity, and availability of the affected IBM i systems. This could lead to full system compromise or disruption of services.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, limit access to trusted users and monitor for unusual activity related to IBM i systems. Avoid exposing affected versions to untrusted networks where possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-24T08:33:15.673Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a7e2503bf8831d539bec0e1
Added to database: 08/13/2026, 20:11:47 UTC
Last enriched: 08/21/2026, 14:06:12 UTC
Last updated: 09/26/2026, 01:47:40 UTC
Views: 52
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.