How severe is CVE-2024-7730?

CVE-2024-7730 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-7730 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-7730?

CVE-2024-7730 affects Qemu. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-7730?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-7730 have an EU (EUVD) identifier?

Yes. CVE-2024-7730 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-48607.

When was CVE-2024-7730 published?

CVE-2024-7730 was published on 2024-11-14 and last updated on 2026-06-17.

CVE-2024-7730

CVE-2024-7730 is a high-severity vulnerability in Qemu with a CVSS 3.x base score of 7.4. 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-122.

Key facts

Severity: High (CVSS 3.x base score 7.4)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-48607
Weakness: CWE-122
Affected product: Qemu
Published: 2024-11-14
Last modified: 2026-06-17

Description

A heap buffer overflow was found in the virtio-snd device in QEMU. When reading input audio in the virtio-snd input callback, virtio_snd_pcm_in_cb, the function did not check whether the iov can fit the data buffer. This issue can trigger an out-of-bounds write if the size of the virtio queue element is equal to virtio_snd_pcm_status, which makes the available space for audio data zero.

Frequently asked questions

What is CVE-2024-7730?: A heap buffer overflow was found in the virtio-snd device in QEMU. When reading input audio in the virtio-snd input callback, virtio_snd_pcm_in_cb, the function did not check whether the iov can fit the data buffer. This issue can trigger an out-of-bounds write if the size of the virtio queue element is equal to virtio_snd_pcm_status, which makes the available space for audio data zero.
How severe is CVE-2024-7730?: CVE-2024-7730 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-7730 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-7730?: CVE-2024-7730 affects Qemu. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-7730?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-7730 have an EU (EUVD) identifier?: Yes. CVE-2024-7730 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-48607.
When was CVE-2024-7730 published?: CVE-2024-7730 was published on 2024-11-14 and last updated on 2026-06-17.

References

Affected products (1)

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

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