EUVD-2026-57613
GHSA-qr9x-rpfx-j6h7
Severity by source
AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Adjacent update channel (AV:A) and no client privileges (PR:N), but injecting code requires a compromised/MITM update host (AC:H); code runs outside the vulnerable component's trust boundary, so S:C with full CIA impact.
Primary rating from Vendor (ibm).
CVSS VectorNVD
Lifecycle Timeline
6DescriptionNVD
IBM i Access Client Solutions 1.1.2.0 through 1.1.9.13 (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.
AnalysisAI
Code-integrity failure in IBM i Access Client Solutions (ACS) versions 1.1.2.0 through 1.1.9.13 lets a positioned attacker deliver unverified, compromised product code to a user's workstation when ACS is configured to auto-update from an IBM i host. Because ACS does not validate the integrity/authenticity of downloaded update code (CWE-494), an attacker who can serve or tamper with that update stream can achieve arbitrary code execution on the client machine. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that IBM i Access Client Solutions be explicitly configured to update its product code from an IBM i host - this is the concrete, non-default prerequisite named in the description ('when configured to update from an IBM i'). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Signals here conflict in an instructive way. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Patch available per vendor advisory: upgrade IBM i Access Client Solutions to the fixed release published in IBM's support notice at https://www.ibm.com/support/pages/node/7282954 (a build newer than 1.1.9.13; consult the advisory for the exact fixed version rather than relying on an inferred number). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify and inventory all systems running IBM i Access Client Solutions versions 1.1.2.0 through 1.1.9.13, and disable the auto-update feature or restrict update sources to verified IBM servers only. …
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Same weakness CWE-494 – Download of Code Without Integrity Check
View allSame technique Information Disclosure
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External POC / Exploit Code
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