ACTIVELY EXPLOITED
CVE-2026-31431: Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability
| Vendor | Linux |
|---|---|
| Product | Kernel |
| Actively exploited | Yes |
| Added to CISA KEV | 1 May 2026 |
| CISA federal deadline | 15 May 2026 |
| Weakness (CWE) | CWE-669 |
Required action (CISA's text)
"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Description (NVD)
Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.
SOURCES
Other Linux flaws
- CVE-2026-46300: Linux Kernel Missing Initialization of a Variable Vulnerability
- CVE-2026-53266: Linux Kernel Out-of-Bounds Write Vulnerability
- CVE-2025-39964: Linux Kernel Race Condition Vulnerability
- CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability
- CVE-2026-53362: Linux Kernel Unspecified Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.