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CVE-2026-3842

Опубликовано: 16 июл. 2026
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 7.8

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.

РелизСтатусПримечание
devel

needed

esm-infra-legacy/trusty

needs-triage

esm-infra-legacy/xenial

needs-triage

esm-infra/bionic

needs-triage

esm-infra/focal

needs-triage

esm-infra/xenial

ignored

end of ESM support, was needs-triage
jammy

not-affected

code not present
noble

released

1:8.2.2+ds-0ubuntu1.16
questing

released

1:10.1.0+ds-5ubuntu2.6
resolute

needed

Показывать по

EPSS

Процентиль: 2%
0.00121
Низкий

7.8 High

CVSS3

Связанные уязвимости

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
nvd
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
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