CVE-2024-6505: A flaw was found in the virtio-net device in QEMU

This month

MEDIUM 6.8WATCHLISTMITIGATEMITIGATE

CVE-2024-6505 is a medium-severity flaw (CVSS 6.8) affecting qemu, enterprise linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature on the virtio-net network card, the indirections_table data within RSS becomes controllable. Setting excessively large values may cause an index out-of-bounds issue, potentially resulting in heap overflow access. This flaw allows a privileged user in the guest to crash the QEMU process on the host.

Why this priority

On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.7% (top 49%)
CISA exploited list	No
Weakness	CWE-125
Published	2024-07-05
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: qemu · redhat

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-07-05 14:15 UTCPublished CVE record published
2026-06-17 08:18 UTCUpdated Record last modified

qemu qemu MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy qemu || rpm -q qemu || qemu --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

redhat enterprise linux MITIGATE

Affected: 8.0 · 9.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-6505?

qemu: mitigate or apply the listed mitigation; enterprise linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-6505 being exploited?

CVE-2024-6505 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-6505 affect?

CVE-2024-6505 affects qemu, enterprise linux. Severity is medium (CVSS 6.8). A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature on the virtio-net network card, the indirections_table data within RSS becomes controllable. Setting excessively large values may cause an index out-of-bounds

How urgent is CVE-2024-6505?

Priority 42/100. On your watchlist

Software pages

QEMU vulnerabilities

Related CVEs

CVE-2025-54567 MEDIUM 4.2 UPGRADE hw/pci/pcie_sriov.c in QEMU through 10.0.3 mishandles the VF Enable bit write mask, a related issue to CVE-202
CVE-2025-54566 MEDIUM 4.2 UPGRADE hw/pci/pcie_sriov.c in QEMU through 10.0.3 has a migration state inconsistency, a related issue to CVE-2024-26
CVE-2024-8354 MEDIUM 5.5 MITIGATE MITIGATE A flaw was found in QEMU
CVE-2024-7730 HIGH 7.4 UPGRADE A heap buffer overflow was found in the virtio-snd device in QEMU
CVE-2024-6519 HIGH 8.2 MITIGATE A use-after-free vulnerability was found in the QEMU LSI53C895A SCSI Host Bus Adapter emulation

References

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