CVE-2026-17494: CWE-121 Stack-based Buffer Overflow in IBM Power Systems Firmware
A stack-based buffer overflow vulnerability exists in IBM Power Systems Firmware versions FW1120.00 and FW1110.00 through FW1110.30. This flaw resides in the interface between the Baseboard Management Controller (BMC) and the host system. An attacker with service access to the BMC can exploit this vulnerability by sending a specially crafted command, resulting in arbitrary code execution on the host system. Successful exploitation grants full control over the host and all hosted partitions, impacting confidentiality, integrity, and availability.
AI Analysis
Technical Summary
CVE-2026-17494 is a stack-based buffer overflow vulnerability (CWE-121) affecting IBM Power Systems Firmware FW1120.00 and FW1110.00 through FW1110.30. The vulnerability exists in the communication interface between the BMC and the host system. An attacker with service-level access to the BMC can send a crafted command that triggers the buffer overflow, enabling arbitrary code execution on the host system. This leads to complete compromise of the host and all hosted partitions, with high impact on confidentiality, integrity, and availability.
Potential Impact
An attacker with service access to the BMC can execute arbitrary code on the host system, gaining full control over the host and all hosted partitions. This results in a critical impact on confidentiality, integrity, and availability of the affected systems.
Mitigation Recommendations
No patch or official remediation information is provided in the available data. Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Until a fix is available, restrict service access to the BMC to trusted personnel only and monitor for suspicious activity related to BMC commands.
CVE-2026-17494: CWE-121 Stack-based Buffer Overflow in IBM Power Systems Firmware
Description
A stack-based buffer overflow vulnerability exists in IBM Power Systems Firmware versions FW1120.00 and FW1110.00 through FW1110.30. This flaw resides in the interface between the Baseboard Management Controller (BMC) and the host system. An attacker with service access to the BMC can exploit this vulnerability by sending a specially crafted command, resulting in arbitrary code execution on the host system. Successful exploitation grants full control over the host and all hosted partitions, impacting confidentiality, integrity, and availability.
CVSS v3.1
Score 8.2high
Affected software
IBM
Power Systems Firmware
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-17494 is a stack-based buffer overflow vulnerability (CWE-121) affecting IBM Power Systems Firmware FW1120.00 and FW1110.00 through FW1110.30. The vulnerability exists in the communication interface between the BMC and the host system. An attacker with service-level access to the BMC can send a crafted command that triggers the buffer overflow, enabling arbitrary code execution on the host system. This leads to complete compromise of the host and all hosted partitions, with high impact on confidentiality, integrity, and availability.
Potential Impact
An attacker with service access to the BMC can execute arbitrary code on the host system, gaining full control over the host and all hosted partitions. This results in a critical impact on confidentiality, integrity, and availability of the affected systems.
Mitigation Recommendations
No patch or official remediation information is provided in the available data. Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Until a fix is available, restrict service access to the BMC to trusted personnel only and monitor for suspicious activity related to BMC commands.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-26T00:32:10.239Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a85feffacd9273b497e930e
Added to database: 08/19/2026, 19:07:43 UTC
Last enriched: 09/11/2026, 06:47:20 UTC
Last updated: 10/02/2026, 02:46:03 UTC
Views: 63
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