What is the CVSS score of CVE-2025-0986?

CVE-2025-0986 has a CVSS 3.1 base score of 4.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:L. EPSS exploitation probability: 0.0%.

Which versions of Powervm Hypervisor are affected by CVE-2025-0986?

CVE-2025-0986 presents moderate security risk rated CVSS 4.5. Exploitation could compromise the security of affected deployments.

How to fix or mitigate CVE-2025-0986?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Powervm Hypervisor CVE-2025-0986

MEDIUM

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

2025-03-28 psirt@us.ibm.com

Information Disclosure IBM Powervm Hypervisor

4.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.5 MEDIUM

AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

Low

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:33 vuln.today

CVE Published

Mar 28, 2025 - 14:15 nvd

MEDIUM 4.5

DescriptionCVE.org

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.

AnalysisAI

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. Rated medium severity (CVSS 4.5), this vulnerability is no authentication required. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-409. 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. Affected products include: Ibm Powervm Hypervisor.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.