Vulnerability in Linux Kernel
CVE-2023-30456
An issue was discovered in arch/x86/kvm/vmx/nested.c in the Linux kernel before 6.2.8. nVMX on x86_64 lacks consistency checks for CR0 and CR4.
EPSS: 0.005 (38.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Linux Linux_kernel — versions 6.3
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Release Notes)
- cve@mitre.org (Patch)
- cve@mitre.org (mailing-list)
- cve@mitre.org (mailing-list)
- cve@mitre.org
- cve@mitre.org
Frequently asked questions
- What is CVE-2023-30456?
- CVE-2023-30456 is a medium-severity vulnerability in Linux Kernel, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 6.5/10. Published 2023-04-10.
- How severe is CVE-2023-30456?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2023-30456 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.