CVE-2026-3195 | THREATINT

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.

PUBLISHED Reserved 2026-02-25 | Published 2026-06-19 | Updated 2026-06-22 | Assigner fedora

HIGH: 7.4CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

Heap-based Buffer Overflow

Product status

Default status

unaffected

8.2.0 (semver)

affected

Default status

unaffected

Default status

unaffected

Default status

unaffected

Default status

unaffected

Default status

unaffected

Default status

unaffected

Default status

unaffected

Timeline

2026-03-02:	Reported to Red Hat.
2026-02-20:	Made public.

Credits

Red Hat would like to thank DARKNAVY (DarkNavyOrg) and Mingyuan Luo for reporting this issue.

References

access.redhat.com/security/cve/CVE-2026-3195 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2443817 (RHBZ#2443817) issue-tracking

cve.org (CVE-2026-3195)

nvd.nist.gov (CVE-2026-3195)

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