CVE-2026-16687CWE-121

CVE-2026-16687

Critical · published August 19, 2026

CVSS v3.1
9.6
EPSS
0%
Percentile
27.0
In the wild
Unconfirmed
What it is

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 ASMI web interface. An unauthenticated attacker with network access can send the FSP a malformed request, allowing arbitrary code execution, giving the attacker full control over the managed system, resulting in a confidentiality, integrity, and availability impact.

The record
Technical detail
CVSS v3.1
9.6 · CRITICAL
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00347 · 27.0th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-08-19T23:17Z
Affected products (10)
ProductVersionsFixed in
ibm/power_system_e1180_\(9080-heu\)_firmware≥ fw1110.00, < fw1110.31fw1110.31
ibm/power_system_e1180_\(9080-heu\)_firmwareall versions—
ibm/power_system_e1080_\(9080-hex\)_firmware≥ fw1060.00, < fw1060.81fw1060.81
ibm/power_system_s922_\(9009-22g\)_firmware≥ fw950.00, < fw950.h3fw950.h3
ibm/power_system_h922_\(9223-22s\)_firmware≥ fw950.00, < fw950.h3fw950.h3
ibm/power_system_s914_\(9009-41g\)_firmware≥ fw950.00, < fw950.h3fw950.h3
ibm/power_system_s924_\(9009-42g\)_firmware≥ fw950.00, < fw950.h3fw950.h3
ibm/power_system_h924_\(9223-42s\)_firmware≥ fw950.00, < fw950.h3fw950.h3
ibm/power_system_e950_\(9040-mr9\)_firmware≥ fw950.00, < fw950.h3fw950.h3
ibm/power_system_e980_\(9080-m9s\)_firmware≥ fw950.00, < fw950.h3fw950.h3
References (1)
EPSS history
Timeline
  • 19 AUG 18:56Z
    Power System Buffer Overflow
    cvelistv5