AUGUST 4, 2026
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Case File

CVE-2021-3638

MEDIUM · CVSS 6.5 EPSS 0.43%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-03-03 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.5. It may lead to a denial-of-service condition.

CVE
CVE-2021-3638
Severity
MEDIUM
CVSS
6.5
EPSS
0.43%

Original NVD Description

An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while handling MMIO write operations when the guest provides invalid values for the destination display parameters. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.

Related CVEs

Other vulnerabilities affecting the same vendor(s)