# CVE-2025-0986: IBM PowerVM Hypervisor data manipulation

> A local user can cause undetected data loss or errors during hardware-accelerated gzip compression in specific Linux compatibility modes.

- **Severity:** Medium 4.5 (`CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 Mar 2025
- **Updated:** 1 Sep 2025
- **Also known as:** GHSA-9qmj-p674-g42j

## What is CVE-2025-0986?

CVE-2025-0986 is a medium-severity vulnerability in IBM PowerVM Hypervisor, published on 28 Mar 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

IBM PowerVM Hypervisor FW1050.00 through FW1050.30 and FW1060.00 through FW1060.20 could allow a local user, under certain Linux processor combability mode configurations, to cause undetected data loss or errors when performing gzip compression using HW acceleration.

Weakness: CWE-409 (Improper Handling of Highly Compressed Data (Data Amplification))

## Which versions are affected by CVE-2025-0986?

It affects 1 product.


Products: Ibm Powervm Hypervisor.

## How do I fix CVE-2025-0986?

No fix has been published for CVE-2025-0986 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-0986 being exploited?

There is no known exploitation of CVE-2025-0986 in the wild and no public exploit code.

## Other vulnerabilities in IBM PowerVM Hypervisor

- [CVE-2023-30438](https://insights.sbomify.com/CVE-2023-30438/): IBM PowerVM gain access (critical 9.3)
- [CVE-2021-38918](https://insights.sbomify.com/CVE-2021-38918/): Security feature bypass in PowerVM Hypervisor (high 8.6)
- [CVE-2022-22445](https://insights.sbomify.com/CVE-2022-22445/): Privilege escalation in PowerVM Hypervisor (high 7.6)
- [CVE-2021-38917](https://insights.sbomify.com/CVE-2021-38917/): Privilege escalation in PowerVM Hypervisor (high 7.4)
- [CVE-2025-36035](https://insights.sbomify.com/CVE-2025-36035/): IBM PowerVM Hypervisor denial of service (medium 6.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-0986 and fix it if it is affected.

What it is: CVE-2025-0986 is a medium-severity vulnerability in IBM PowerVM Hypervisor, published on 28 Mar 2025. 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-2025-0986 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-2025-0986/ (Markdown: https://insights.sbomify.com/CVE-2025-0986/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-0986
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-0986
- OSV: https://osv.dev/vulnerability/CVE-2025-0986

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-0986/
Summaries are generated and may contain mistakes; the official description above is the record.