CVE-2026-17425: CWE-787 Out-of-bounds Write in IBM AIX
IBM AIX versions 7.2 and 7.3, along with IBM PowerVM VIOS 4.1, contain a stack buffer overflow vulnerability that can be triggered remotely to cause a denial of service. This vulnerability is identified as CWE-787 (Out-of-bounds Write) and has a CVSS 3.1 base score of 7.5, indicating high severity. No official patch or remediation guidance has been provided yet by IBM. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
CVE-2026-17425 is a high-severity vulnerability in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 involving an out-of-bounds write (CWE-787) that can be exploited remotely to cause a denial of service via a stack buffer overflow. The vulnerability allows an unauthenticated attacker to crash the affected system, impacting availability. The CVSS vector indicates no required privileges or user interaction and network attack vector. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation results in denial of service by crashing the system due to a stack buffer overflow. There is no indication of confidentiality or integrity impact. The vulnerability can be triggered remotely without authentication or user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Until a fix is available, consider limiting network exposure of affected systems and monitoring for unusual crashes.
CVE-2026-17425: CWE-787 Out-of-bounds Write in IBM AIX
Description
IBM AIX versions 7.2 and 7.3, along with IBM PowerVM VIOS 4.1, contain a stack buffer overflow vulnerability that can be triggered remotely to cause a denial of service. This vulnerability is identified as CWE-787 (Out-of-bounds Write) and has a CVSS 3.1 base score of 7.5, indicating high severity. No official patch or remediation guidance has been provided yet by IBM. There are no known exploits in the wild at this time.
CVSS v3.1
Score 7.5high
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
CVE-2026-17425 is a high-severity vulnerability in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 involving an out-of-bounds write (CWE-787) that can be exploited remotely to cause a denial of service via a stack buffer overflow. The vulnerability allows an unauthenticated attacker to crash the affected system, impacting availability. The CVSS vector indicates no required privileges or user interaction and network attack vector. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation results in denial of service by crashing the system due to a stack buffer overflow. There is no indication of confidentiality or integrity impact. The vulnerability can be triggered remotely without authentication or user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Until a fix is available, consider limiting network exposure of affected systems and monitoring for unusual crashes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-25T06:08:48.882Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a877ac7acd9273b493025e5
Added to database: 08/20/2026, 22:08:07 UTC
Last enriched: 08/20/2026, 22:23:02 UTC
Last updated: 08/20/2026, 23:19:44 UTC
Views: 3
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