CVE-2026-17423: CWE-125 Out-of-bounds Read in IBM AIX
CVE-2026-17423 is a high severity vulnerability affecting IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. It involves an out-of-bounds read (CWE-125) that could allow a remote attacker to obtain sensitive information and cause a denial of service. The vulnerability does not require user interaction or privileges and has a low attack complexity. No official patch or remediation guidance is currently provided by the vendor.
AI Analysis
Technical Summary
This vulnerability in IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1, is caused by an out-of-bounds read condition (CWE-125). An attacker with remote access could exploit this flaw to read sensitive information from memory and cause a denial of service on the affected systems. The CVSS 3.1 base score is 7.7, reflecting high impact on confidentiality and availability, with no integrity impact. The attack vector is local (AV:L), attack complexity is low (AC:L), and no privileges or user interaction are required. As of the published date, no vendor advisory or patch is available.
Potential Impact
Successful exploitation can lead to disclosure of sensitive information and denial of service on affected IBM AIX and PowerVM VIOS systems. The confidentiality impact is high, availability impact is high, and integrity is not affected. The vulnerability can be exploited remotely without privileges or user interaction, increasing risk on exposed systems.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor IBM security advisories for updates. No vendor-provided temporary or official fixes are currently documented.
CVE-2026-17423: CWE-125 Out-of-bounds Read in IBM AIX
Description
CVE-2026-17423 is a high severity vulnerability affecting IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. It involves an out-of-bounds read (CWE-125) that could allow a remote attacker to obtain sensitive information and cause a denial of service. The vulnerability does not require user interaction or privileges and has a low attack complexity. No official patch or remediation guidance is currently provided by the vendor.
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 in IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1, is caused by an out-of-bounds read condition (CWE-125). An attacker with remote access could exploit this flaw to read sensitive information from memory and cause a denial of service on the affected systems. The CVSS 3.1 base score is 7.7, reflecting high impact on confidentiality and availability, with no integrity impact. The attack vector is local (AV:L), attack complexity is low (AC:L), and no privileges or user interaction are required. As of the published date, no vendor advisory or patch is available.
Potential Impact
Successful exploitation can lead to disclosure of sensitive information and denial of service on affected IBM AIX and PowerVM VIOS systems. The confidentiality impact is high, availability impact is high, and integrity is not affected. The vulnerability can be exploited remotely without privileges or user interaction, increasing risk on exposed systems.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor IBM security advisories for updates. No vendor-provided temporary or official fixes are currently documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-25T06:04:07.489Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a877ac5acd9273b493025c4
Added to database: 08/20/2026, 22:08:05 UTC
Last enriched: 08/20/2026, 22:23:14 UTC
Last updated: 08/20/2026, 22:23:14 UTC
Views: 2
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