How severe is CVE-2024-26327?

CVE-2024-26327 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-26327 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-26327?

CVE-2024-26327 affects Qemu. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-26327?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-26327 have an EU (EUVD) identifier?

Yes. CVE-2024-26327 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-23596.

When was CVE-2024-26327 published?

CVE-2024-26327 was published on 2024-02-19 and last updated on 2026-06-17.

CVE-2024-26327

CVE-2024-26327 is a medium-severity vulnerability in Qemu with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-23596
Weakness: CWE-787
Affected product: Qemu
Published: 2024-02-19
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2024-26327?: 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.
How severe is CVE-2024-26327?: CVE-2024-26327 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-26327 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-26327?: CVE-2024-26327 affects Qemu. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-26327?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-26327 have an EU (EUVD) identifier?: Yes. CVE-2024-26327 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-23596.
When was CVE-2024-26327 published?: CVE-2024-26327 was published on 2024-02-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*

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