EUVD-2026-62749
GHSA-82q4-49mx-8527
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Remote unauthenticated access (AV:N, PR:N) with no interaction; high integrity impact from DNS/routing manipulation; no confidentiality or significant availability loss.
Primary rating from Vendor (ibm).
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Lifecycle Timeline
2DescriptionNVD
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to manipulate network traffic and DNS configuration due to improper authentication.
AnalysisAI
Remote unauthenticated manipulation of network traffic and DNS configuration is possible in IBM AIX 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1, due to improper authentication controls (CWE-287). The CVSS 8.2 vector (AV:N/AC:L/PR:N/UI:N) confirms exploitation requires no credentials, no user interaction, and no special network positioning - making this accessible to any remote attacker with TCP connectivity to an affected system. …
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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 remote unauthenticated exploitation with low complexity against IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 systems. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.2 base score is well-supported by the vector metrics: AV:N (network exploitable), AC:L (no special conditions), PR:N (no authentication), and UI:N (no user interaction), with a high integrity impact (I:H) from DNS and network traffic manipulation, and low availability impact (A:L). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with TCP connectivity to an exposed AIX or VIOS network service crafts and sends unauthenticated requests to the vulnerable daemon responsible for DNS or network configuration, bypassing identity verification due to CWE-287. The attacker then issues commands to redirect DNS resolution - pointing critical hostnames to attacker-controlled IP addresses - or modifies routing entries to intercept network traffic transiting the VIOS layer. … |
| Remediation | A vendor-released patch is available from IBM. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit infrastructure inventory to identify all systems running IBM AIX 7.2, AIX 7.3, or PowerVM VIOS 4.1. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
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Same weakness CWE-287 – Improper Authentication
View allSame technique Authentication Bypass
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External POC / Exploit Code
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