EUVD-2026-63742
GHSA-q2rp-77f6-p8cc
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Remote unauthenticated network crash with no confidentiality or integrity impact; SSVC 'Automatable: no' noted but insufficient data to elevate AC beyond L.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
6DescriptionNVD
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 stack-based buffer overflow.
AnalysisAI
Stack-based buffer overflow in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows remote unauthenticated attackers to crash affected systems, producing a denial of service. The CVSS 3.1 vector scores this at 7.5 High with no authentication or user interaction required, targeting availability exclusively. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The CVSS 3.1 vector (PR:N/UI:N/AV:N/AC:L) indicates remote unauthenticated exploitation with low attack complexity against affected IBM AIX 7.2, 7.3, or PowerVM VIOS 4.1 systems. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) presents this as a straightforward, unauthenticated remote crash - a high-severity rating reflecting availability loss. … 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 guidance from 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 systems running IBM AIX 7.2, 7.3, or PowerVM VIOS 4.1 and assess network exposure to untrusted sources. …
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The SSL protocol 3.0, as used in OpenSSL through 1.0.1i and other products, uses nondeterministic CBC padding, which mak
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IBM AIX 6.1, 7.1, and 7.2 could allow a local user to gain root privileges using a specially crafted command within the
lquerylv in cmdlvm in IBM AIX 5.3, 6.1, and 7.1 and VIOS 2.2.x allows local users to gain privileges via a crafted DBGCM
libodm.a in IBM AIX 5.3, 6.1, and 7.1 allows local users to overwrite arbitrary files via a symlink attack on a temporar
libodm.a in IBM AIX 6.1 and 7.1, and VIOS 2.2.x, allows local users to overwrite arbitrary files via a symlink attack on
OS command injection in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 lets a remote, low-privileged authenticated attacker ru
OS command injection in IBM AIX 7.2 and 7.3 and in IBM PowerVM VIOS 4.1 lets a remote, authenticated attacker execute ar
OS command injection in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 lets a remote authenticated attacker run arbitrary commands
Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Buffer Overflow
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External POC / Exploit Code
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