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Noroxi
NVD / CVE Program· CNA mitre

CVE-2024-26327: An issue was discovered in QEMU 7.1.0 through 8.2.1.

Noroxi assessment

Priority: Monitor (action score 21/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.59% (FIRST EPSS).
  • Someone on the same network segment can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: qemu-guest-agent (AlmaLinux:9) 17:9.0.0-10.el9_5; qemu-img (AlmaLinux:9) 17:9.0.0-10.el9_5; qemu-kvm (AlmaLinux:9) 17:9.0.0-10.el9_5.

Low priority for now. Upgrade to qemu-guest-agent (AlmaLinux:9) 17:9.0.0-10.el9_5; qemu-img (AlmaLinux:9) 17:9.0.0-10.el9_5; qemu-kvm (AlmaLinux:9) 17:9.0.0-10.el9_5 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

An issue was discovered in QEMU 7.1.0 through 8.2.1. register_vfs in hw/pci/pcie_sriov.c mishandles the situation where a guest writes NumVFs greater than TotalVFs, leading to a buffer overflow in VF implementations.

MediumCVSS 5.3 · v3.1—No exploit Fix available
Published
Feb 19, 2024
Updated
Jun 17, 2026
EPSS
0.5% · 48th percentile

Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-26327

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
qemuqemu

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • qemu qemu7.1.0 and later · up to 8.2.1 inclusive

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:9qemu-guest-agentbefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-imgbefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvmbefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-audio-pabefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-block-blkiobefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-block-curlbefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-block-rbdbefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-commonbefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-corebefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-device-display-virtio-gpubefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-device-display-virtio-gpu-ccwbefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-device-display-virtio-gpu-pcibefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-device-display-virtio-vgabefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-device-usb-hostbefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-device-usb-redirectbefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-docsbefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-toolsbefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-ui-egl-headlessbefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-kvm-ui-openglbefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
AlmaLinux:9qemu-pr-helperbefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5
Debian:12qemubefore 1:7.2+dfsg-7+deb12u61:7.2+dfsg-7+deb12u6
Debian:13qemubefore 1:8.2.3+ds-11:8.2.3+ds-1
openSUSE:Leap 15.5qemubefore 7.1.0-150500.49.12.17.1.0-150500.49.12.1
Red Hat:enterprise_linux:9::appstreamqemu-guest-agentbefore 17:9.0.0-10.el9_517:9.0.0-10.el9_5

+44

Same product

qemu: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-12928The QMP migrate command in QEMU version 4.0.0 and earlier is vulnerable to OS command injection, which allows the remote attacker to achieve
    60This week
  • CVE-2015-8556Local privilege escalation vulnerability in the Gentoo QEMU package before 2.5.0-r1.
    44Plan
  • CVE-2017-15118A stack-based buffer overflow vulnerability was found in NBD server implementation in qemu before 2.11 allowing a client to request an expor
    43Plan

Published before and after this one in the same product

  • ← EarlierCVE-2023-6693Jan 2, 2024 · Qemu: virtio-net: stack buffer overflow in virtio_net_flush_tx()
    21Monitor
  • ← EarlierCVE-2023-6683Jan 12, 2024 · Qemu: vnc: null pointer dereference in qemu_clipboard_request()
    26Monitor
  • Later →CVE-2024-26328Feb 19, 2024 · An issue was discovered in QEMU 7.1.0 through 8.2.1.
    24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
almalinux:qemu-guest-agent17:9.0.0-10.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:qemu-img17:9.0.0-10.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:qemu-kvm17:9.0.0-10.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:qemu-kvm-audio-pa17:9.0.0-10.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:qemu-kvm-block-blkio17:9.0.0-10.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:qemu-kvm-block-curl17:9.0.0-10.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:qemu-kvm-block-rbd17:9.0.0-10.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:qemu-kvm-common17:9.0.0-10.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:qemu-kvm-core17:9.0.0-10.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:qemu-kvm-device-display-virtio-gpu17:9.0.0-10.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:qemu-kvm-device-display-virtio-gpu-ccw17:9.0.0-10.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:qemu-kvm-device-display-virtio-gpu-pci17:9.0.0-10.el9_5 · AlmaLinux:9Package registry (OSV)
debian:qemu1:7.2+dfsg-7+deb12u6 · Debian:12Package registry (OSV)
opensuse:qemu7.1.0-150500.49.12.1 · openSUSE:Leap 15.5Package registry (OSV)
red hat:qemu-guest-agent17:9.0.0-10.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:qemu-guest-agent-debuginfo17:9.0.0-10.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:qemu-img17:9.0.0-10.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:qemu-img-debuginfo17:9.0.0-10.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:qemu-kvm17:9.0.0-10.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:qemu-kvm-audio-dbus-debuginfo17:9.0.0-10.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:qemu-kvm-audio-pa17:9.0.0-10.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:qemu-kvm-audio-pa-debuginfo17:9.0.0-10.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:qemu-kvm-block-blkio17:9.0.0-10.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:qemu-kvm-block-blkio-debuginfo17:9.0.0-10.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:qemu-kvm-block-curl17:9.0.0-10.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:qemu-kvm-block-curl-debuginfo17:9.0.0-10.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
rocky linux:qemu-kvm7:9.0.0-10.el9_5.2 · Rocky Linux:9Package registry (OSV)
suse:qemu7.1.0-150500.49.12.1 · SUSE:Linux Enterprise Micro 5.5Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-263280 days apartAn issue was discovered in QEMU 7.1.0 through 8.2.1.
    24Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone on the same network segment can trigger it.
  • No account or password is required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records