CVE-2021-4158
6.0
MEDIUM
CVSS 3.1
EPSS 0.02%
Description
A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
How to fix CVE-2021-4158
To remediate CVE-2021-4158, upgrade the affected package to a fixed version below.
- Debian/qemu—upgrade to 1:6.2+dfsg-2 or later
Is CVE-2021-4158 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1:6.2+dfsg-2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H |