What’s Vulnerable › Vulnerabilities

CVE-2021-36144

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-07-02 · updated 2026-06-17
Weakness: CWE-416

Description

The polling timer handler in ACRN before 2.5 has a use-after-free for a freed virtio device, related to devicemodel/hw/pci/virtio/*.c.

Affected products

Linux Acrn: before 2.5 — fixed in 2.5

How to fix

Upgrade to a fixed version: Linux Acrn 2.5. Check the vendor advisory for mitigations.

References

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