EUVD-2026-62732
GHSA-c694-2687-m8gx
Severity by source
AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:A confirmed by adjacent-network constraint; PR:N and UI:N consistent with description of remote unauthenticated exploitation; full C/I/A:H reflects arbitrary OS command execution.
Primary rating from Vendor (ibm).
CVSS VectorNVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionNVD
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary commands due to improper neutralization of special elements used in an OS command.
AnalysisAI
OS command injection in IBM AIX 7.2/7.3 and IBM PowerVM VIOS 4.1 allows an adjacent network attacker without credentials to execute arbitrary operating system commands. The flaw (CWE-78) arises from improper neutralization of special elements passed to OS command constructors, exposing the full confidentiality, integrity, and availability of affected hosts. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must be on an adjacent network to the target - the same Layer-2 broadcast domain, VLAN, or directly connected segment. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H scores 8.8 (High), reflecting low-complexity unauthenticated exploitation but restricting the attack vector to adjacent network (AV:A) - meaning the attacker must be on the same broadcast domain, VLAN, or directly connected network segment as the target, not reachable from the open internet. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker positioned on the same network segment as an IBM Power Systems host - for example, a compromised server within the same data centre VLAN - crafts a malformed request containing shell metacharacters to a vulnerable IBM AIX or VIOS service. The target fails to sanitise the input before passing it to an OS command constructor, causing the injected commands to execute with the privileges of the vulnerable service. … |
| Remediation | Apply the vendor-released patch referenced in the IBM Security Advisory at https://www.ibm.com/support/pages/node/7283858. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all IBM AIX 7.2, AIX 7.3, and PowerVM VIOS 4.1 systems in your environment, prioritizing systems with network exposure or supporting critical business services. …
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Same weakness CWE-78 – OS Command Injection
View allSame technique Command Injection
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External POC / Exploit Code
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