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Medium severity · published Aug 19, 2026
CVE-2026-15961
Power System Information Disclosure
6.0
CVSS
0.1%
EPSS
No
On KEV
Description
IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 IBM PowerVM could allow a local attacker to obtain sensitive information or cause a denial of service due to improper control of format strings.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PH
PowerVM Hypervisor · IBM
FW1120.00; FW1110.00 through FW1110.30; FW1060.00 through FW1060.80 · source: vendor
PS
Power System E1050 (9043-mrx) Firmware · Ibm
fw1060.00 before fw1060.81 · source: NVD
PS
Power System E1080 (9080-hex) Firmware · Ibm
fw1060.00 before fw1060.81 · source: NVD
PS
Power System E1150 (9043-mru) Firmware · Ibm
fw1110.00 before fw1110.31; fw1120.00 · source: NVD
PS
Power System E1180 (9080-heu) Firmware · Ibm
fw1110.00 before fw1110.31; fw1120.00 · source: NVD
PS
Power System L1022 (9786-22h) Firmware · Ibm
fw1060.00 before fw1060.81 · source: NVD
PS
Power System L1024 (9786-42h) Firmware · Ibm
fw1060.00 before fw1060.81 · source: NVD
PS
Power System L1122 (9856-22h) Firmware · Ibm
fw1110.00 before fw1110.31; fw1120.00 · source: NVD
PS
Power System L1124 (9856-42h) Firmware · Ibm
fw1110.00 before fw1110.31; fw1120.00 · source: NVD
PS
Power System S1012 (9028-21b) Firmware · Ibm
fw1060.00 before fw1060.81 · source: NVD
PS
Power System S1014 (9105-41b) Firmware · Ibm
fw1060.00 before fw1060.81 · source: NVD
PS
Power System S1022 (9105-22a) Firmware · Ibm
fw1060.00 before fw1060.81 · source: NVD
Affected product
PH
PowerVM Hypervisor
IBM
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-15961
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-15961
Vendor Advisory
https://www.ibm.com/support/pages/node/7283228
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