SEPTEMBER 19, 2026
Live Feed
Back to database
Case File

CVE-2026-16661

HIGH · CVSS 8.2 EPSS 0.13% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-19 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

IBM PowerVM Hypervisor versions FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 are vulnerable due to a flaw in the service processor mailbox interface that allows authenticated attackers to execute arbitrary code in the host firmware. This exploitation can lead to a complete compromise of the managed system, affecting its confidentiality, integrity, and availability. Organizations using these versions should prioritize patching to mitigate the risk of unauthorized control over their systems.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-16661
Severity
HIGH
CVSS
8.2
EPSS
0.13%

Original NVD Description

IBM PowerVM Hypervisor 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 service processor mailbox interface. An attacker with authenticated service-level access to the 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)