CVE-2026-18870: CWE-125 Out-of-bounds Read in IBM PowerVM Hypervisor
IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 could allow a remote attacker to obtain sensitive information due to an out-of-bounds read.
AI Analysis
Technical Summary
IBM PowerVM Hypervisor versions FW1120.00 to FW1120.01, FW1110.00 to FW1110.31, FW1060.00 to FW1060.81, and FW950.00 to FW950.H3 contain an out-of-bounds read vulnerability (CWE-125). This flaw could be exploited remotely without authentication or user interaction to leak sensitive information. The CVSS 3.1 base score is 4.3, reflecting a low complexity attack vector with confidentiality impact only. No integrity or availability impacts are noted. The vulnerability is published and assigned CVE-2026-18870 by IBM.
Potential Impact
A remote attacker could exploit this vulnerability to read memory beyond intended boundaries, potentially exposing sensitive information. There is no impact on integrity or availability. The attack requires network access but no privileges or user interaction.
Mitigation Recommendations
No patch or official remediation information is currently available. Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Monitor IBM security advisories for updates and apply patches once released.
CVE-2026-18870: CWE-125 Out-of-bounds Read in IBM PowerVM Hypervisor
Description
IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 could allow a remote attacker to obtain sensitive information due to an out-of-bounds read.
CVSS v3.1
Score 4.3medium
Affected software
IBM
PowerVM Hypervisor
cpe:2.3:a:ibm:powervm_hypervisor:fw1120.00:*:*:*:*:*:*:*cpe:2.3:a:ibm:powervm_hypervisor:fw1120.00.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:powervm_hypervisor:fw1120.01:*:*:*:*:*:*:*cpe:2.3:a:ibm:powervm_hypervisor:fw1120.01.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:powervm_hypervisor:fw1110.00:*:*:*:*:*:*:*cpe:2.3:a:ibm:powervm_hypervisor:fw1110.00.0:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
IBM PowerVM Hypervisor versions FW1120.00 to FW1120.01, FW1110.00 to FW1110.31, FW1060.00 to FW1060.81, and FW950.00 to FW950.H3 contain an out-of-bounds read vulnerability (CWE-125). This flaw could be exploited remotely without authentication or user interaction to leak sensitive information. The CVSS 3.1 base score is 4.3, reflecting a low complexity attack vector with confidentiality impact only. No integrity or availability impacts are noted. The vulnerability is published and assigned CVE-2026-18870 by IBM.
Potential Impact
A remote attacker could exploit this vulnerability to read memory beyond intended boundaries, potentially exposing sensitive information. There is no impact on integrity or availability. The attack requires network access but no privileges or user interaction.
Mitigation Recommendations
No patch or official remediation information is currently available. Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Monitor IBM security advisories for updates and apply patches once released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-08-04T17:04:55.432Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab5386df7a7c54106707eb4
Added to database: 09/24/2026, 14:49:17 UTC
Last enriched: 09/24/2026, 15:05:28 UTC
Last updated: 09/25/2026, 02:48:26 UTC
Views: 6
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