Answer in brief
CVE-2026-17100 records a Unknown severity vulnerability in Power System Out-of-bounds Write. The current sources do not mark it as known exploited. The current feed maps IBM/Power Firmware (generic), IBM/Power Systems Firmware (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps IBM/Power Firmware (generic), IBM/Power Systems Firmware (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| IBM/Power Firmwaregeneric | FW1120.00 || FW1110.00 || FW1060.00 || FW950.00 || OP940.00 || OP940.00 | Not reported |
| IBM/Power Systems Firmwaregeneric | FW1120.00 || FW1110.00 || FW1060.00 || FW950.00 || OP940.00 || OP940.00 | Not reported |
Published upstream
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 19, 2026
Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1, and OP940.00 - OP940.81 is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the BMC/FSP can exploit this vulnerability, allowing arbitrary code to be executed in the host firmware runtime, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact to the managed system.
Quoted source text, attributed separately from HOL analysis.