CVE-2026-17504

This Power System update is being released to address

MEDIUM
4.4
CVSS Score
Published: September 24, 2026 at 02:07 PM UTC
Updated: September 29, 2026 at 02:58 PM UTC
53 products affected across 1 vendorPowerVM HypervisorPower System E1080 (9080-hex ) FirmwarePower System E1180 (9080-heu ) Firmware

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Severity
MEDIUM4.4
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 is affected by a vulnerability in the partition firmware runtime. An attacker with root access to a partition can send a specially crafted request to the partition firmware runtime, causing it to crash with possible memory corruption.

Affected

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

fw1060.00 ≤ v < fw1060.81
Affected range stops below fw1060.81, so it looks safe — our inference, not a vendor statement
ibm-power-system-e1050-9043-mrx (same device)
fw1060.00 ≤ v < fw1060.81
Affected range stops below fw1060.81, so it looks safe — our inference, not a vendor statement
ibm-power-system-e1080-9080-hex (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-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)
fw950.00 ≤ v < fw950.h3
Affected range stops below fw950.h3, so it looks safe — our inference, not a vendor statement
ibm-power-system-e950-9040-mr9 (same device)
fw950.00 ≤ v < fw950.h3
Affected range stops below fw950.h3, so it looks safe — our inference, not a vendor statement
ibm-power-system-e980-9080-m9s (same device)
fw950.00 ≤ v < fw950.h3
Affected range stops below fw950.h3, so it looks safe — our inference, not a vendor statement
ibm-power-system-h922-9223-22s (same device)
fw950.00 ≤ v < fw950.h3
Affected range stops below fw950.h3, so it looks safe — our inference, not a vendor statement
ibm-power-system-h924-9223-42s (same device)
fw1060.00 ≤ v < fw1060.81
Affected range stops below fw1060.81, so it looks safe — our inference, not a vendor statement
ibm-power-system-l1022-9786-22h (same device)
fw1060.00 ≤ v < fw1060.81
Affected range stops below fw1060.81, so it looks safe — our inference, not a vendor statement
ibm-power-system-l1024-9786-42h (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/7289130

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusUNDERGOING ANALYSIS
CWE
CWE-191

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