Public vulnerability disclosure

CVE-2026-17024

Vulnerabilities in IBM AIX and PowerVM VIOS

publishedCWE-295

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to improper certificate validation.

Technical severity7.7 highCVSS 3.1 · CNA: ibm
Published2026-08-20Source updated 2026-11-04
Collected2026-11-043 attributed sources

Fixes and workarounds

Fix

A.  APARS IBM has assigned the following APARs to this problem: AIX LevelAPARAvailability  SPKEY7.2.5IJ5956608/14/2026SP13key_w_apar7.3.2IJ5956508/14/2026SP05key_w_apar7.3.3IJ5956408/14/2026SP03key_w_apar7.3.4IJ59563 08/14/2026SP02key_w_apar VIOS LevelAPARAvailability SPKEY4.1.0IJ5956508/14/20264.1.0.50key_w_apar4.1.1IJ5956408/14/20264.1.1.30key_w_apar4.1.2IJ5956308/14/20264.1.2.20key_w_apar B.  FIXES IBM strongly recommends addressing the vulnerability now.  AIX and VIOS fixes are available and can be downloaded from Fix Central: https://www.ibm.com/support/fixcentral  An LPAR reboot is required to complete the SP/FP update. On AIX, Live Update can be used to avoid a reboot.  IBM has assigned the following AIX Service Packs (SPs) and VIOS Fix Packs (FPs) as the remediation levels for the published vulnerabilities. AIX Level Service PackAIX 7.3 TL04SP2AIX 7.3 TL03SP3AIX 7.3 TL02SP5AIX 7.2 TL05 SP13 PowerVM VIOS LevelFix PackVIOS 4.1.2 4.1.2.20VIOS 4.1.1 4.1.1.30VIOS 4.1.0  4.1.0.50 Note: These SPs/FPs are cumulative and include fixes for all previously published AIX/VIOS security vulnerabilities. They can be applied on top of any earlier affected level of the TL . Note: To apply these patches using nimsh secure, special steps must be taken as the protocol between master and client is updated to be more secure. Please read this article: https://www.ibm.com/support/pages/node/7283157 Note: For VIOS 4.1.0 and VIOS 4.1.1, additional steps are required to migrate to the latest Postgres15 after applying the 4.1.1.30 or 4.1.0.50 FPs above. Instructions to do that can be found here:                             4.1.0.50 post-update instructions: https://www.ibm.com/support/pages/node/7283819           4.1.1.30 post-update instructions: https://www.ibm.com/support/pages/node/7283823

Source: CNA: ibm

Fix

The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.

Source: CNA: ibm

Fix

The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.

Source: [email protected]

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
AIX
IBM
7.2 (affected)
7.3 (affected)
CNA: ibm
PowerVM VIOS
IBM
4.1 (affected) CNA: ibm

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

NVD applicability configurations (2)

These expressions retain AND/OR operators, negation, and required environmental products. A listed product is not sufficient to establish exposure when additional conditions apply.

[
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "4.1.0.50",
            "versionStartIncluding": "4.1.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "4.1.1.30",
            "versionStartIncluding": "4.1.1.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "4.1.2.20",
            "versionStartIncluding": "4.1.2.0",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "OR"
  },
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*",
            "versionEndIncluding": "7.2.5.212",
            "versionStartIncluding": "7.2.5",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*",
            "versionEndIncluding": "7.3.2.5",
            "versionStartIncluding": "7.3.2",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*",
            "versionEndIncluding": "7.3.3.2",
            "versionStartIncluding": "7.3.3",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*",
            "versionEndIncluding": "7.3.4.1",
            "versionStartIncluding": "7.3.4",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "OR"
  }
]

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
3.1 / 7.7
high
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:HCNA: ibm
3.1 / 9.8
critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD: [email protected]
3.1 / 7.7
high
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:HNVD: [email protected]

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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