CVE-2026-17436: CWE-787 Out-of-bounds Write in IBM AIX
CVE-2026-17436 is a high-severity vulnerability in IBM AIX versions 7.2 and 7.3, and IBM PowerVM VIOS 4.1. It involves a heap-based buffer overflow that could allow a remote attacker to execute arbitrary code without requiring user interaction or privileges.
AI Analysis
Technical Summary
This vulnerability is a heap-based buffer overflow (CWE-787) affecting IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. The flaw could be exploited remotely to execute arbitrary code, impacting confidentiality, integrity, and availability. The CVSS 3.1 base score is 8.8, reflecting high impact and low attack complexity with no privileges or user interaction needed. No official patch or remediation level has been published yet, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation could lead to remote code execution with full impact on confidentiality, integrity, and availability of the affected systems. This could allow attackers to take control of vulnerable systems remotely.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor IBM advisories for updates and consider applying any recommended temporary mitigations once published.
CVE-2026-17436: CWE-787 Out-of-bounds Write in IBM AIX
Description
CVE-2026-17436 is a high-severity vulnerability in IBM AIX versions 7.2 and 7.3, and IBM PowerVM VIOS 4.1. It involves a heap-based buffer overflow that could allow a remote attacker to execute arbitrary code without requiring user interaction or privileges.
CVSS v3.1
Score 8.8high
Affected software
cpe:2.3:a:ibm:aix:7.2:*:*:*:*:*:*:*cpe:2.3:a:ibm:aix:7.2.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:aix:7.3:*:*:*:*:*:*:*cpe:2.3:a:ibm:aix:7.3.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:*cpe:2.3:a:ibm:powervm_vios:4.1.0:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a heap-based buffer overflow (CWE-787) affecting IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. The flaw could be exploited remotely to execute arbitrary code, impacting confidentiality, integrity, and availability. The CVSS 3.1 base score is 8.8, reflecting high impact and low attack complexity with no privileges or user interaction needed. No official patch or remediation level has been published yet, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation could lead to remote code execution with full impact on confidentiality, integrity, and availability of the affected systems. This could allow attackers to take control of vulnerable systems remotely.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor IBM advisories for updates and consider applying any recommended temporary mitigations once published.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-25T15:21:35.426Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a877ac7acd9273b493025e7
Added to database: 08/20/2026, 22:08:07 UTC
Last enriched: 08/20/2026, 22:22:46 UTC
Last updated: 08/20/2026, 22:22:46 UTC
Views: 2
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.