Vulnerability · Published Jul 30, 2026 · Assigned by ibm
CVE-2026-11885Power System update in Buffer Copy
High 8.4
In plain English
A high-severity buffer overflow in PowerVM Hypervisor from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).
Severity (CVSS 3.1)8.4High
Exploit odds (30 days)0.1%top 96.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
IBM PowerVM Hypervisor FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H1 A carefully crafted OS hypervisor call can cause the PowerVM hypervisor to crash or compromise OS memory integrity.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| IBM | PowerVM Hypervisor | FW1110.00 – through FW1110.20FW1060.00 – through FW1060.71FW950.00 – through FW950.H1 |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
References
- https://www.ibm.com/support/pages/node/7280628 vendor-advisory, patch