CVE & CISA-KEV Catalog

CVE-2026-3195

HIGH
7.4
CVSS v3
NVD

Description

A flaw was found in QEMU. When reading input audio in the virtio-snd device input callback, the `virtio_snd_pcm_in_cb` function did not check whether the iov could fit the data buffer, potentially leading to a heap out-of-bounds write. This issue exists due to an incomplete fix for CVE-2024-7730.

CWE-122Heap-based Buffer Overflow

How to fix

Remediation Available
qemuDebian
Fixed in:1:10.2.2+ds-1CVE-2026-3195
qemuUbuntu
Fixed in:1:6.2+dfsg-2ubuntu6.30USN-8161-1
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-systemUbuntu
Fixed in:1:6.2+dfsg-2ubuntu6.30USN-8161-1
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-system-armUbuntu
Fixed in:1:6.2+dfsg-2ubuntu6.30USN-8161-1
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-system-commonUbuntu
Fixed in:1:6.2+dfsg-2ubuntu6.30USN-8161-1
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-system-dataUbuntu
Fixed in:1:6.2+dfsg-2ubuntu6.30USN-8161-1
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-system-guiUbuntu
Fixed in:1:6.2+dfsg-2ubuntu6.30USN-8161-1
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-system-mipsUbuntu
Fixed in:1:6.2+dfsg-2ubuntu6.30USN-8161-1
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-system-miscUbuntu
Fixed in:1:6.2+dfsg-2ubuntu6.30USN-8161-1
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-system-modules-openglUbuntu
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-system-modules-spiceUbuntu
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-system-ppcUbuntu
Fixed in:1:6.2+dfsg-2ubuntu6.30USN-8161-1
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-system-riscvUbuntu
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-system-s390xUbuntu
Fixed in:1:6.2+dfsg-2ubuntu6.30USN-8161-1
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-system-sparcUbuntu
Fixed in:1:6.2+dfsg-2ubuntu6.30USN-8161-1
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-system-x86Ubuntu
Fixed in:1:6.2+dfsg-2ubuntu6.30USN-8161-1
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-system-x86-microvmUbuntu
Fixed in:1:6.2+dfsg-2ubuntu6.30USN-8161-1
qemu-system-x86-xenUbuntu
Fixed in:1:6.2+dfsg-2ubuntu6.30USN-8161-1
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1
qemu-system-xenUbuntu
Fixed in:1:8.2.2+ds-0ubuntu1.16USN-8161-1
Fixed in:1:10.1.0+ds-5ubuntu2.6USN-8161-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

0.13%probability of exploitation in 30 days
3rdpercentile

Low risk: more likely to be exploited than 3% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-30.