CVE-2026-17423
Vulnerabilities in IBM AIX and PowerVM VIOS
Description
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to obtain sensitive information and cause a denial of service due to an out-of-bounds read.
INFO
Published Date :
Aug. 20, 2026, 10:17 p.m.
Last Modified :
Aug. 25, 2026, 1:46 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-17423
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 9a959283-ebb5-44b6-b705-dcc2bbced522 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update IBM AIX to the latest version.
- Update IBM PowerVM VIOS to the latest version.
- Apply any available security patches for AIX.
- Apply any available security patches for VIOS.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-17423.
| URL | Resource |
|---|---|
| https://www.ibm.com/support/pages/node/7283858 | Patch Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-17423 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-17423
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-17423 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-17423 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 25, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Added CPE Configuration OR *cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:* versions from (including) 4.1.0 up to (excluding) 4.1.0.50 *cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:* versions from (including) 4.1.1.0 up to (excluding) 4.1.1.30 *cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:* versions from (including) 4.1.2.0 up to (excluding) 4.1.2.20 Added CPE Configuration OR *cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* versions from (including) 7.2.5 up to (including) 7.2.5.212 *cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* versions from (including) 7.3.2 up to (including) 7.3.2.5 *cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* versions from (including) 7.3.3 up to (including) 7.3.3.2 *cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* versions from (including) 7.3.4 up to (including) 7.3.4.1 Added Reference Type IBM Corporation: https://www.ibm.com/support/pages/node/7283858 Types: Patch, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 21, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-17423', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-21T15:23:46.161318Z'} -
New CVE Received by [email protected]
Aug. 20, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['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:*:*:*:*:*:*:*'], 'vendor': 'IBM', 'product': 'AIX', 'versions': [{'status': 'affected', 'version': '7.2'}, {'status': 'affected', 'version': '7.3'}]}, {'cpes': ['cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:*', 'cpe:2.3:a:ibm:powervm_vios:4.1.0:*:*:*:*:*:*:*'], 'vendor': 'IBM', 'product': 'PowerVM VIOS', 'versions': [{'status': 'affected', 'version': '4.1'}]}] Added Description IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to obtain sensitive information and cause a denial of service due to an out-of-bounds read. Added CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Added CWE CWE-125 Added Reference https://www.ibm.com/support/pages/node/7283858