What is CVE-2017-5578?

CVE-2017-5578 is a medium-severity vulnerability in Qemu, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 6.5/10. Published 2017-03-15.

How severe is CVE-2017-5578?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Qemu

CVE-2017-5578

Memory leak in the virtio_gpu_resource_attach_backing function in hw/display/virtio-gpu.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (host memory consumption) via a large number of VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING commands.

Published 2017-03-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (31.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Qemu

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

git.qemu.org/
www.securityfocus.com/bid/95781 (VDB Entry, Third Party Advisory, vdb-entry)
security.gentoo.org/glsa/201702-28 (vendor-advisory, Third Party Advisory)
www.openwall.com/lists/oss-security/2017/01/23/3 (mailing-list, Patch, Mailing List, Third Party Advisory)
www.openwall.com/lists/oss-security/2017/01/25/2 (mailing-list, Patch, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2017-5578?: CVE-2017-5578 is a medium-severity vulnerability in Qemu, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 6.5/10. Published 2017-03-15.
How severe is CVE-2017-5578?: Medium severity. CVSS v3 base score is 6.5 out of 10.