EUVD-2026-63725
GHSA-prfm-wgwq-jf7v
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Network-reachable overflow requiring only low-privilege authentication; full CIA impact from RCE; scope unchanged as no hypervisor escape is indicated.
Primary rating from Vendor (us).
CVSS VectorNVD
Lifecycle Timeline
5DescriptionNVD
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote authenticated attacker to execute arbitrary code due to a stack-based buffer overflow.
AnalysisAI
Remote code execution is possible in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 via a stack-based buffer overflow exploitable by a remote attacker holding low-privilege credentials. The CVSS 8.8 score reflects full confidentiality, integrity, and availability impact with a network attack vector and no user interaction required beyond authentication. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires valid low-privilege credentials on the target system (CVSS PR:L confirmed) and network connectivity to the affected service (CVSS AV:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) indicates a high-severity flaw requiring only low-privilege network authentication with no user interaction - a significant concern for any IBM Power environment. … 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 | Consult and apply the fix documented in IBM security advisory https://www.ibm.com/support/pages/node/7283858; specific patched version numbers are not independently confirmed from the data available at time of analysis and must be obtained directly from that advisory. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all systems running AIX 7.2, 7.3, and PowerVM VIOS 4.1; audit current low-privilege user accounts and service accounts with access to these systems; restrict network access to affected systems to only essential administrative functions. …
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OS command injection in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 lets a remote, low-privileged authenticated attacker ru
Improper authentication in IBM AIX 7.2 and 7.3, and in IBM PowerVM VIOS 4.1, allows a remote attacker to execute arbitra
Remote code execution in IBM AIX 7.2 and 7.3 (and IBM PowerVM VIOS 4.1) stems from a stack-based buffer overflow that le
Remote code execution in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 stems from a buffer overflow (out-of-bounds write) that a
Remote code execution in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 stems from a buffer overflow (out-of-bounds write) that a
Remote code execution in IBM AIX 7.2 and 7.3, and IBM PowerVM VIOS 4.1, stems from a stack-based buffer overflow (CWE-78
Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Memory Corruption
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External POC / Exploit Code
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