CVSS 3.1
6.7 mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HCVE-2021-3543
Medium (6.7). EPSS 0.3% chance of exploitation in the next 30 days.
A flaw null pointer dereference in the Nitro Enclaves kernel driver was found in the way that Enclaves VMs forces closures on the enclave file descriptor. A local user of a host machine could use this flaw to crash the system or escalate their privileges on the system.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-416, CWE-476
- Published
- Modified
- Record from
- the NVD, synced
Affected
- fedoraproject:fedora
- nitro_enclaves_project:nitro_enclaves
- redhat:enterprise_linux