6.7

CVE-2026-48914

Qemu-kvm: heap buffer overflow in virtio-blk scsi request handling

A flaw was found in QEMU's virtio-blk device. The issue arises because the device does not properly validate the size of input descriptors before writing data. A malicious guest with high privileges could exploit this vulnerability by submitting a malformed virtio-blk SCSI request, leading to an out-of-bounds write in the host heap memory and a potential denial of service (DoS) for the QEMU process.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Collection URLhttps://gitlab.com/qemu-project/qemu
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Paket qemu
Default Statusunaffected
Version <= 11.0.1
Version 1.1.0
Status affected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 10
Default Statusaffected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 6
Default Statusunknown
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 7
Default Statusunknown
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 7
Default Statusunknown
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 8
Default Statusaffected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 9
Default Statusaffected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux for NVIDIA 26
Default Statusaffected
HerstellerRed Hat
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Produkt Red Hat OpenShift Container Platform 4
Default Statusaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.022
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secalert@redhat.com 6.7 1.5 4.7
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H
CWE-122 Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

https://access.redhat.com/security/cve/CVE-2026-48914
https://bugzilla.redhat.com/show_bug.cgi?id=2488283
https://lore.kernel.org/qemu-devel/20260526154957.1741622-1-stefanha@redhat.com/