CVE-2026-17003: CWE-787 Out-of-bounds Write in IBM AIX
CVE-2026-17003 is a high-severity vulnerability in IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1. It involves an out-of-bounds write that could allow a remote attacker to compromise the confidentiality and integrity of the affected systems. The vulnerability has a CVSS score of 7.7, indicating significant impact if exploited. No official patch or remediation guidance has been provided yet, and no known exploits are reported in the wild.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-787 (Out-of-bounds Write), affects IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. It allows a remote attacker to perform an out-of-bounds write, potentially compromising system confidentiality and integrity. The CVSS 3.1 vector indicates the attack requires network access with high attack complexity, no privileges, and no user interaction, impacting confidentiality and integrity highly, and availability to a lesser extent. The vulnerability is published and assigned CVE-2026-17003 but lacks an official remediation level or patch information.
Potential Impact
Successful exploitation could lead to unauthorized disclosure and modification of sensitive data on affected IBM AIX and PowerVM VIOS systems. The integrity and confidentiality of the system could be compromised, although availability impact is low. No active exploitation has been reported so far.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor IBM's security advisories for updates. No vendor-provided mitigations or temporary fixes are currently documented.
CVE-2026-17003: CWE-787 Out-of-bounds Write in IBM AIX
Description
CVE-2026-17003 is a high-severity vulnerability in IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1. It involves an out-of-bounds write that could allow a remote attacker to compromise the confidentiality and integrity of the affected systems. The vulnerability has a CVSS score of 7.7, indicating significant impact if exploited. No official patch or remediation guidance has been provided yet, and no known exploits are reported in the wild.
CVSS v3.1
Score 7.7high
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, identified as CWE-787 (Out-of-bounds Write), affects IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. It allows a remote attacker to perform an out-of-bounds write, potentially compromising system confidentiality and integrity. The CVSS 3.1 vector indicates the attack requires network access with high attack complexity, no privileges, and no user interaction, impacting confidentiality and integrity highly, and availability to a lesser extent. The vulnerability is published and assigned CVE-2026-17003 but lacks an official remediation level or patch information.
Potential Impact
Successful exploitation could lead to unauthorized disclosure and modification of sensitive data on affected IBM AIX and PowerVM VIOS systems. The integrity and confidentiality of the system could be compromised, although availability impact is low. No active exploitation has been reported so far.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor IBM's security advisories for updates. No vendor-provided mitigations or temporary fixes are currently documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-24T09:36:53.010Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a877785acd9273b492c5df5
Added to database: 08/20/2026, 21:54:13 UTC
Last enriched: 08/20/2026, 22:53:55 UTC
Last updated: 08/20/2026, 23:52:21 UTC
Views: 3
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