# CVE-2026-11885: Power System update in Buffer Copy

> A crafted hypervisor call can crash the PowerVM hypervisor or compromise OS memory integrity, requiring a firmware patch.

- **Severity:** High 8.4 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Jul 2026
- **Updated:** 30 Jul 2026
- **Also known as:** GHSA-f687-cr2f-7jv7

## What is CVE-2026-11885?

CVE-2026-11885 is a high-severity memory corruption vulnerability in IBM PowerVM Hypervisor, published on 30 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### 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.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2026-11885?

It affects 30 products.


Products: Ibm Power System E1050 \(9043-Mrx\) Firmware, Ibm Power System E1080 \(9080-Hex\) Firmware, Ibm Power System E1150 \(9043-Mru\) Firmware, Ibm Power System E1180 \(9080-Heu\) Firmware, Ibm Power System E950 \(9040-Mr9\) Firmware, Ibm Power System E980 \(9080-M9s\) Firmware, Ibm Power System H922 \(9223-22h\) Firmware, Ibm Power System H922 \(9223-22s\) Firmware, Ibm Power System H924 \(9223-42h\) Firmware, Ibm Power System H924 \(9223-42s\) Firmware, Ibm Power System L1022 \(9786-22h\) Firmware, Ibm Power System L1024 \(9786-42h\) Firmware, Ibm Power System L1122 \(9856-22h\) Firmware, Ibm Power System L1124 \(9856-42h\) Firmware, Ibm Power System L922 \(9008-22l\) Firmware, Ibm Power System S1012 \(9028-21b\) Firmware, Ibm Power System S1014 \(9105-41b\) Firmware, Ibm Power System S1022 \(9105-22a\) Firmware, Ibm Power System S1022s \(9105-22b\) Firmware, Ibm Power System S1024 \(9105-42a\) Firmware and 10 more.

## How do I fix CVE-2026-11885?

No fix has been published for CVE-2026-11885 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-11885 being exploited?

There is no known exploitation of CVE-2026-11885 in the wild and no public exploit code.

## Other vulnerabilities in IBM PowerVM Hypervisor

- [CVE-2026-17091](https://insights.sbomify.com/CVE-2026-17091/): Power System Integer Overflow (high 8.4)
- [CVE-2026-16661](https://insights.sbomify.com/CVE-2026-16661/): Power System Integer Overflow (high 8.2)
- [CVE-2026-16707](https://insights.sbomify.com/CVE-2026-16707/): Power System Out-of-bounds Read (high 8.2)
- [CVE-2026-16930](https://insights.sbomify.com/CVE-2026-16930/): Power System Missing Authorization (high 8.2)
- [CVE-2026-19234](https://insights.sbomify.com/CVE-2026-19234/): Power System Buffer Overflow (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11885 and fix it if it is affected.

What it is: CVE-2026-11885 is a high-severity memory corruption vulnerability in IBM PowerVM Hypervisor, published on 30 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-11885 in the wild and no public exploit code.

Affected product: IBM PowerVM Hypervisor. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-11885/ (Markdown: https://insights.sbomify.com/CVE-2026-11885/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11885
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11885
- OSV: https://osv.dev/vulnerability/CVE-2026-11885

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-11885/
Summaries are generated and may contain mistakes; the official description above is the record.