EUVD-2026-63644
GHSA-33qx-26f4-f26q
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description states remote attacker and memory-corruption RCE with no stated auth or interaction, so AV:N/PR:N/UI:N; use-after-free RCE yields full C/I/A impact.
Primary rating from Vendor (ibm).
CVSS VectorVendor: ibm
Lifecycle Timeline
2DescriptionCVE.org
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a use-after-free vulnerability.
AnalysisAI
Remote code execution in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 stems from a use-after-free (CWE-416) that a network-based attacker can trigger without authentication or user interaction, per the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N). Successful exploitation yields full compromise of confidentiality, integrity, and availability (CVSS 9.8). …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions per the CVSS vector - remote unauthenticated exploitation (AV:N/AC:L/PR:N/UI:N) against affected versions of IBM AIX (7.2, 7.3) and PowerVM VIOS (4.1). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals are strongly aligned toward high priority: the CVSS 3.1 base score is 9.8 with a fully remote, low-complexity, unauthenticated, no-interaction vector and total C/I/A impact, and the vulnerability was reported by the vendor (IBM) with a patch already available. … 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 | Apply the vendor-supplied fix referenced in IBM's security bulletin at https://www.ibm.com/support/pages/node/7283858 (Patch available per vendor advisory); the input does not include an exact fix-pack or ifix version number, so obtain the precise APAR/ifix identifiers for AIX 7.2, AIX 7.3, and VIOS 4.1 directly from that advisory and do not assume a version. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, complete an inventory of all IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 systems and assess network exposure for each; immediately isolate or restrict network access to any production instances not yet patched. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Multiple unspecified vulnerabilities in the InfiniBand subsystem in IBM AIX 6.1 and 7.1, and VIOS 2.2.2.2-FP-26 SP-02, a
IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the invscout c
IBM AIX contains an unspecified vulnerability that would allow a locally authenticated user to obtain root level privile
IBM AIX 5.3, 6.1, 7.1, and 7.2 contains an unspecified vulnerability that would allow a locally authenticated user to ob
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
IBM AIX 7.2 and 7.3 nimesis NIM master service could allow a remote attacker to execute arbitrary commands due to improp
Same weakness CWE-416 – Use After Free
View allShare
External POC / Exploit Code
Leaving vuln.today