Summary
| Parameter | Value |
|---|---|
| CVE ID | CVE-2026-31431 |
| Alert Source | CISA KEV - Active Exploitation |
| CVE Publication Year | 2026 |
| Date Published | 2026-05-01 |
| Vendor | Linux |
| Product | Kernel |
| CVSS Score | 7.8 (high) |
| EPSS Score | 2.6% (percentile: 86%) |
| CISA KEV | Yes - confirmed active exploitation |
| Ransomware | Not confirmed |
| Remediation Deadline | 2026-05-15 |
Vulnerability Description
Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.
Required Actions
“Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Who Is Affected?
This vulnerability affects Kernel by Linux. Check if your organization uses this software and requires updates.
Sources
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