AUGUST 4, 2026
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Case File

CVE-2021-3607

MEDIUM · CVSS 6 EPSS 0.30%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-02-24 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.0. It affects VMware, VMWare. It may lead to a denial-of-service condition.

CVE
CVE-2021-3607
Severity
MEDIUM
CVSS
6
EPSS
0.30%
VMware VMWare

Original NVD Description

An integer overflow was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a "PVRDMA_REG_DSRHIGH" write from the guest due to improper input validation. This flaw allows a privileged guest user to make QEMU allocate a large amount of memory, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

Related CVEs

Other vulnerabilities affecting the same vendor(s)