CVE-2026-17100
Power System Out-of-bounds Write
Description
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.
INFO
Published Date :
Aug. 19, 2026, 7:17 p.m.
Last Modified :
Aug. 19, 2026, 7:17 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-17100
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 9a959283-ebb5-44b6-b705-dcc2bbced522 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
- Update IBM Power Firmware to the latest version.
- Apply vendor-supplied security patches.
- Restrict service-level access to BMC/FSP.
- Monitor system logs for suspicious activity.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-17100.
| URL | Resource |
|---|---|
| https://www.ibm.com/support/pages/node/7283236 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-17100 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-17100
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-17100 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-17100 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Aug. 19, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:2.3:o:ibm:power_firmware:fw1120.00:*:*:*:*:*:*:*', 'cpe:2.3:o:ibm:power_firmware:fw1110.00:*:*:*:*:*:*:*', 'cpe:2.3:o:ibm:power_firmware:fw1110.30:*:*:*:*:*:*:*', 'cpe:2.3:o:ibm:power_firmware:fw1060.00:*:*:*:*:*:*:*', 'cpe:2.3:o:ibm:power_firmware:fw1060.80:*:*:*:*:*:*:*', 'cpe:2.3:o:ibm:power_firmware:fw950.00:*:*:*:*:*:*:*', 'cpe:2.3:o:ibm:power_firmware:fw950.h2:*:*:*:*:*:*:*', 'cpe:2.3:o:ibm:power_firmware:op940.00:*:*:*:*:*:*:*', 'cpe:2.3:o:ibm:power_firmware:op940.a1:*:*:*:*:*:*:*'], 'vendor': 'IBM', 'product': 'Power Systems Firmware', 'versions': [{'status': 'affected', 'version': 'FW1120.00'}, {'status': 'affected', 'version': 'FW1110.00', 'versionType': 'semver', 'lessThanOrEqual': 'FW1110.30'}, {'status': 'affected', 'version': 'FW1060.00', 'versionType': 'semver', 'lessThanOrEqual': 'FW1060.80'}, {'status': 'affected', 'version': 'FW950.00', 'versionType': 'semver', 'lessThanOrEqual': 'FW950.H2'}, {'status': 'affected', 'version': 'OP940.00', 'versionType': 'semver', 'lessThanOrEqual': 'OP940.a1'}, {'status': 'affected', 'version': 'OP940.00', 'versionType': 'semver', 'lessThanOrEqual': 'OP940.81'}]}] Added Description 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. Added CVSS V3.1 AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Added CWE CWE-787 Added Reference https://www.ibm.com/support/pages/node/7283236