EUVD-2026-63678
GHSA-5grv-2mch-f23m
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local low-privilege access required per description; stack overflow is low-complexity to trigger; full C/I/A impact from arbitrary code execution; no scope change as VIOS impact remains within the exploited system boundary.
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 local attacker to execute arbitrary code 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 enables a local low-privileged attacker to execute arbitrary code, achieving full system compromise (C:H/I:H/A:H). The attack requires only a local account with standard user privileges and no user interaction, making post-authentication lateral movement or privilege escalation a realistic threat in IBM Power-based enterprise environments. …
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 | Exploitation requires a local user account with at minimum standard (low) privileges on the affected IBM AIX 7.2/7.3 or PowerVM VIOS 4.1 system, as confirmed by CVSS PR:L and AV:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 7.8 with AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H accurately reflects the risk profile: local exploitation with low complexity and no user interaction, yielding full system control. … 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 | IBM has released a patch addressing this vulnerability; apply the fix levels described at https://www.ibm.com/support/pages/node/7283858. … 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 across production and non-production environments to determine affected asset scope. …
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-121 – Stack-based Buffer Overflow
View allSame technique Stack Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today