CVE-2026-17494

Power System Buffer Overflow

HIGH
8.2
CVSS Score
Published: August 19, 2026 at 06:42 PM UTC
Updated: August 25, 2026 at 08:40 PM UTC
21 products affected across 1 vendorPower System E1180 (9080-heu ) FirmwarePower System S1122S (9824-22b ) FirmwarePower System S1124 (9824-42a ) Firmware

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

Description

IBM Power Firmware FW1120.00, and FW1110.00 through FW1110.30 is affected by a vulnerability in the interface between the BMC and the host system. An attacker with service access to the BMC can send a specially crafted command, allowing arbitrary code to be executed on the host system, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.

Affected

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

fw1110.00 ≤ v < fw1110.31fw1120.00
Affected range stops below fw1110.31, so it looks safe — our inference, not a vendor statement
ibm-power-system-e1150-9043-mru (same device)
fw1110.00 ≤ v < fw1110.31fw1120.00
Affected range stops below fw1110.31, so it looks safe — our inference, not a vendor statement
ibm-power-system-e1180-9080-heu (same device)
fw1110.00 ≤ v < fw1110.31fw1120.00
Affected range stops below fw1110.31, so it looks safe — our inference, not a vendor statement
ibm-power-system-l1122-9856-22h (same device)
fw1110.00 ≤ v < fw1110.31fw1120.00
Affected range stops below fw1110.31, so it looks safe — our inference, not a vendor statement
ibm-power-system-l1124-9856-42h (same device)
ibm-power-system-s1112-9242-21b (same device)
ibm-power-system-s1112-9242-21t (same device)
fw1110.00 ≤ v < fw1110.31fw1120.00
Affected range stops below fw1110.31, so it looks safe — our inference, not a vendor statement
ibm-power-system-s1114-9824-41b (same device)
fw1110.00 ≤ v < fw1110.31fw1120.00
Affected range stops below fw1110.31, so it looks safe — our inference, not a vendor statement
ibm-power-system-s1122-9824-22a (same device)
fw1110.00 ≤ v < fw1110.31fw1120.00
Affected range stops below fw1110.31, so it looks safe — our inference, not a vendor statement
ibm-power-system-s1122s-9824-22b (same device)
fw1110.00 ≤ v < fw1110.31fw1120.00
Affected range stops below fw1110.31, so it looks safe — our inference, not a vendor statement
ibm-power-system-s1124-9824-42a (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/7283220

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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