Security Bulletin
Summary
IBM i Access Client Solutions (ACS) is vulnerable to multiple vulnerabilities [CVE-2026-13094, CVE-2026-13105, CVE-2026-13433, CVE-2026-14866, CVE-2026-14875, CVE-2026-16695] as described in the vulnerability details section.
Vulnerability Details
CVEID: CVE-2026-13094
DESCRIPTION: IBM i Access Client Solutions is vulnerable to arbitrary code execution on Windows when installed for all users due to publicly writeable configuration file.
CWE: CWE-94: Improper Control of Generation of Code ('Code Injection')
CVSS Source: IBM
CVSS Base score: 7.8
CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2026-13433
DESCRIPTION: IBM i Access Client Solutions (ACS) is vulnerable to downloading unverified product code when configured to update from an IBM i. A bad actor could use this vulnerablity to run compromised code on the ACS user's workstation.
CWE: CWE-494: Download of Code Without Integrity Check
CVSS Source: IBM
CVSS Base score: 8.3
CVSS Vector: (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H)
CVEID: CVE-2026-13105
DESCRIPTION: IBM i Access Client Solutions is vulnerable to zip slip path traversal exploit when importing a configuration.
CWE: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSS Source: IBM
CVSS Base score: 8.8
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
CVEID: CVE-2026-16695
DESCRIPTION: IBM i Access Family could allow a local attacker to execute arbitrary code due to improper neutralization of special elements used in an OS command.
CWE: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVSS Source: IBM
CVSS Base score: 7.8
CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
CVEID: CVE-2026-14866
DESCRIPTION: IBM i Access Client Solutions is vulnerable to injection of rogue certificate authority due to publicly writeable truststore.
CWE: CWE-798: Use of Hard-coded Credentials
CVSS Source: IBM
CVSS Base score: 7.7
CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)
CVEID: CVE-2026-14875
DESCRIPTION: IBM i Access Client Solutions is vulnerable to arbitrary code execution on Windows when installed for all users due to publicly writeable directory.
CWE: CWE-426: Untrusted Search Path
CVSS Source: IBM
CVSS Base score: 7.3
CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM i Access Client Solutions | 1.1.2.0 - 1.1.9.13 |
Remediation/Fixes
The issues can be fixed by upgrading to version 1.1.9.14 or later. See IBM i Access Client Solutions updates for the latest version available.
| Product(s) | Version(s) | Remediation/Fix/Instructions | |||||||||||||||
| IBM i Access Client Solutions | 1.1.2.0 - 1.1.9.13 |
There are three ways to obtain the current version of IBM i Access Client Solutions: 1) IBM i Access Client Solutions is available at Downloads. 2) IBM i Access Client Solutions can be downloaded from the general IBM i software site at Entitled Systems Support (ESS).
3) IBM i Access Client Solutions is available by applying a PTF to IBM i.
|
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
07 Aug 2026: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.
Document Location
Worldwide
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Document Information
Modified date:
07 August 2026
Initial Publish date:
07 August 2026
UID
ibm17282954