EUVD-2026-62527
GHSA-72jw-xc98-wq8x
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Network-reachable unauthenticated trigger with no interaction; pure crash impact with no confidentiality or integrity consequence, consistent with DoS-only NULL pointer dereference.
Primary rating from Vendor (ibm).
CVSS VectorVendor: ibm
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2DescriptionCVE.org
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to a NULL pointer dereference.
AnalysisAI
IBM AIX 7.2 and 7.3, and PowerVM VIOS 4.1 expose an unauthenticated remote denial-of-service condition rooted in a NULL pointer dereference. A remote attacker with no credentials or user interaction can crash affected network-accessible components, resulting in complete availability loss (A:H) with no confidentiality or integrity impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The CVSS vector AV:N/AC:L/PR:N/UI:N confirms no special conditions are required - remote unauthenticated exploitation against default-configured IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 systems that are network-accessible. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.5 base score is driven by the fully network-accessible, zero-authentication, zero-interaction attack vector (AV:N/AC:L/PR:N/UI:N), yielding a straightforward high-availability-impact denial-of-service. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated remote attacker sends a malformed or unexpected network request to a vulnerable IBM AIX 7.2/7.3 or PowerVM VIOS 4.1 system, targeting a network-accessible service with insufficient null-pointer validation. The service dereferences a null pointer when processing the crafted input, causing a crash that takes the service - or potentially the system - offline. … |
| Remediation | IBM has released a patch addressing this vulnerability; organizations should consult the IBM Security Advisory at https://www.ibm.com/support/pages/node/7283858 to obtain the applicable fix pack, interim fix, or Technology Level update for IBM AIX 7.2/7.3 or PowerVM VIOS 4.1. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 systems and prioritize by business criticality. …
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Same weakness CWE-476 – NULL Pointer Dereference
View allSame technique Null Pointer Dereference
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External POC / Exploit Code
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