Vulnerability in IBM Power System E1050 \(9043-Mrx\) Firmware
CVE-2026-15961
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.2 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H.
EPSS exploit prediction
EPSS: 0.001 (0.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
- IBM Power System E1050 \(9043-Mrx\) Firmware
- IBM Power System E1080 \(9080-Hex\) Firmware
- IBM Power System E1150 \(9043-Mru\) Firmware — versions fw1120.00
- IBM Power System E1180 \(9080-Heu\) Firmware — versions fw1120.00
- IBM Power System L1022 \(9786-22h\) Firmware
- IBM Power System L1024 \(9786-42h\) Firmware
- IBM Power System L1122 \(9856-22h\) Firmware — versions fw1120.00
- IBM Power System L1124 \(9856-42h\) Firmware — versions fw1120.00
- IBM Power System S1012 \(9028-21b\) Firmware
- IBM Power System S1014 \(9105-41b\) Firmware
Weakness classification (CWE)
References
- www.ibm.com/support/pages/node/7283228 (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-15961?
- CVE-2026-15961 is a medium-severity vulnerability in IBM Power System E1050 \(9043-Mrx\) Firmware, classified under Use of Externally-Controlled Format String. CVSS score: 5.2/10. Published 2026-08-19.
- How severe is CVE-2026-15961?
- Medium severity. CVSS v3 base score is 5.2 out of 10.