CVE-2026-19234

Power System Buffer Overflow

HIGH
8.2
CVSS Score
Published: August 19, 2026 at 06:02 PM UTC
Updated: August 26, 2026 at 03:29 PM UTC
20 products affected across 1 vendorPower System E1180 (9080-heu ) FirmwarePower System E1080 (9080-hex ) FirmwarePower System E1050 (9043-mrx ) Firmware

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Severity
HIGH8.2
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

IBM Power Firmware FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in the host firmware boot process image validation path. An attacker with service access to the service processor can supply a maliciously crafted code update image, allowing arbitrary code to be executed on the host system. Successful exploitation could result in a confidentiality, integrity, and availability impact to the affected host system.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

fw1060.00 ≤ v < fw1060.81
ibm-power-system-e1050-9043-mrx (same device)
fw1060.00 ≤ v < fw1060.81
ibm-power-system-e1080-9080-hex (same device)
fw1110.00 ≤ v < fw1110.31fw1120.00
ibm-power-system-e1150-9043-mru (same device)
fw1110.00 ≤ v < fw1110.31fw1120.00
ibm-power-system-e1180-9080-heu (same device)
fw1060.00 ≤ v < fw1060.81
ibm-power-system-l1022-9786-22h (same device)
fw1060.00 ≤ v < fw1060.81
ibm-power-system-l1024-9786-42h (same device)
fw1110.00 ≤ v < fw1110.31fw1120.00
ibm-power-system-l1122-9856-22h (same device)
fw1110.00 ≤ v < fw1110.31fw1120.00
ibm-power-system-l1124-9856-42h (same device)
fw1060.00 ≤ v < fw1060.81
ibm-power-system-s1012-9028-21b (same device)
fw1060.00 ≤ v < fw1060.81
ibm-power-system-s1014-9105-41b (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://www.ibm.com/support/pages/node/7283221

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.2HIGHibm
Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-121

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