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Vulnerability record · CVE-2026-16835 · published 19 August 2026

CVE-2026-16835: Ibm power system e1080 \(9080-hex\) firmware improper certificate validation vulnerability

Ibm · Power System E1080 \(9080 Hex\) Firmware

IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the FSP management network protocol. An unauthenticated attacker on the management network can bypass authentication and perform any administrative operation on the managed system, including control of partition power state, configuration, and console access across all hosted partitions, resulting in a confidentiality, integrity, and availability impact to the managed system.

9.6 CVSS 3.1 Critical EPSS 0.36% · top 72.8% CWE-295 · Improper certificate validation
9.6CVSS 3.1 base score
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
9Affected product versions listed by NVD
1References
25 Aug 2026Last modified by NVD

Description

IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the FSP management network protocol. An unauthenticated attacker on the management network can bypass authentication and perform any administrative operation on the managed system, including control of partition power state, configuration, and console access across all hosted partitions, resulting in a confidentiality, integrity, and availability impact to the managed system.

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

9 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.ibm.com/support/pages/node/7283894 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-45656Ibm power system e1080 \(9080-hex\) firmware hard-coded credentials vulnerabilityIBM Flexible Service Processor (FSP) FW860.00 through FW860.B3, FW950.00 through FW950.C0, FW1030.00 through FW1030.61, FW1050.00 through FW1050.21, …EPSS 0.45%9.6CVE-2026-16687Ibm power system e1180 \(9080-heu\) firmware stack-based buffer overflow vulnerabilityIBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulner…EPSS 0.35%8.8CVE-2026-18821Ibm power system s1122 \(9824-22a\) firmware out-of-bounds write vulnerabilityIBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 Power Systems Firmware is a…EPSS 0.20%8.8CVE-2026-17414Ibm power system s1122 \(9824-22a\) firmware improper input validation vulnerabilityIBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 Power Systems Firmware is a…EPSS 0.19%8.4CVE-2026-17091Ibm power system s1122 \(9824-22a\) firmware integer overflow vulnerabilityIBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerabil…EPSS 0.15%8.4CVE-2026-16832Ibm power system e1080 \(9080-hex\) firmware stack-based buffer overflow vulnerabilityIBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulner…EPSS 0.32%8.4CVE-2026-11885Ibm power system s1122 \(9824-22a\) firmware classic buffer overflow vulnerabilityIBM PowerVM Hypervisor FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H1 A carefully crafted OS hypervisor call…EPSS 0.15%8.3CVE-2026-18848Ibm power system e1080 \(9080-hex\) firmware cross-site request forgery vulnerabilityIBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulner…EPSS 0.15%

Source: NIST National Vulnerability Database (record CVE-2026-16835), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.