CVE-2026-96266 json
IBM Power Systems Firmware Buffer Overflow
published 2026-10-12 27 d ago modified 2026-10-13 26 d ago also EUVD-2026-97866
- cvss
- 8.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 2%
- public exploits
- 0
- none known
Summary
IBM Power Systems Firmware FW1060.00 through FW1060.81 is affected by a vulnerability in host firmware configuration parsing. An attacker with authenticated service-level access to the FSP can write specially crafted configuration data to cause memory corruption in the host firmware boot stage during system IPL, compromising the host firmware boot stack and the hypervisor subsequently loaded by it. Successful exploitation results in a confidentiality, integrity, and availability impact to the managed system.
Patch / fix
- ibm.com/support/pages/node/7290128 advisory
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 27 d ago
Exploit prediction
0.12% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.2 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
Affected products
- IBM PowerVM Hypervisor
Classification
- Weakness
-
- CWE-121 Stack-based Buffer Overflow
References
-
ibm.com
/support/pages/node/7290128
vendor-advisory, patch
Sources
- CVE List CVE-2026-96266
- NVD CVE-2026-96266
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