CVE-2019-20808: Qemu

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

In QEMU 4.1.0, an out-of-bounds read flaw was found in the ATI VGA implementation. It occurs in the ati_cursor_define() routine while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.

Affected products

• Qemu Qemu: version 4.1.0 only

Published 2020-12-31. Last modified 2026-06-17.