An out-of-bounds write vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and…

Description

An out-of-bounds write vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. The flaw occurs while processing the 'VIRTIO_GPU_CMD_GET_CAPSET' command from the guest. It could allow a privileged guest user to crash the QEMU process on the host, resulting in a denial of service condition, or potential code execution with the privileges of the QEMU process.

Scores

EPSS (exploitation in 30 days)

0.46% · top 60% of all CVEs (7 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.2.

Weakness

• CWE-787 (opens in a new tab)All about CWE-787 and its CVEs

Affected products

• QEMU

  • affected All QEMU versions up to and including 6.0

References (5)

• [oss-security] 20210531 QEMU: security issues in vhost-user-gpu (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=1958978 (opens in a new tab)x_refsource_MISCx_transferred
• https://security.netapp.com/advisory/ntap-20210720-0008/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• DSA-4980 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• GLSA-202208-27 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2021-3546](https://trackcve.app/badge/CVE-2021-3546.svg)](https://trackcve.app/cve/CVE-2021-3546)

Record last updated 3 Aug 2024, 17:01 UTC.