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CVE-2026-3842

Опубликовано: 16 июл. 2026
Источник: nvd
CVSS3: 7.8
EPSS Низкий

Описание

A flaw was found in QEMU. This vulnerability allows a local attacker within a guest virtual machine to write data beyond its allocated memory. This occurs when cpu_physical_memory_map() returns a shorter length than expected, leading to an out-of-bounds write. Successful exploitation could result in unauthorized access to guest memory or corruption of heap-allocated objects, potentially causing information disclosure, data integrity issues, or a denial of service.

EPSS

Процентиль: 2%
0.00121
Низкий

7.8 High

CVSS3

Дефекты

CWE-787
CWE-787

Связанные уязвимости

CVSS3: 7.8
ubuntu
22 дня назад

A flaw was found in QEMU. This vulnerability allows a local attacker within a guest virtual machine to write data beyond its allocated memory. This occurs when cpu_physical_memory_map() returns a shorter length than expected, leading to an out-of-bounds write. Successful exploitation could result in unauthorized access to guest memory or corruption of heap-allocated objects, potentially causing information disclosure, data integrity issues, or a denial of service.

CVSS3: 7.8
redhat
5 месяцев назад

A flaw was found in QEMU. This vulnerability allows a local attacker within a guest virtual machine to write data beyond its allocated memory. This occurs when cpu_physical_memory_map() returns a shorter length than expected, leading to an out-of-bounds write. Successful exploitation could result in unauthorized access to guest memory or corruption of heap-allocated objects, potentially causing information disclosure, data integrity issues, or a denial of service.

CVSS3: 7.8
msrc
17 дней назад

Qemu-kvm: hyperv/syndbg: missing mapped-length guard after cpu_physical_memory_map causes host oob write

CVSS3: 7.8
debian
22 дня назад

A flaw was found in QEMU. This vulnerability allows a local attacker w ...

CVSS3: 7.8
github
22 дня назад

A flaw was found in QEMU. This vulnerability allows a local attacker within a guest virtual machine to write data beyond its allocated memory. This occurs when cpu_physical_memory_map() returns a shorter length than expected, leading to an out-of-bounds write. Successful exploitation could result in unauthorized access to guest memory or corruption of heap-allocated objects, potentially causing information disclosure, data integrity issues, or a denial of service.

EPSS

Процентиль: 2%
0.00121
Низкий

7.8 High

CVSS3

Дефекты

CWE-787
CWE-787