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CVE-2026-18917

Опубликовано: 20 авг. 2026
Источник: nvd
CVSS3: 7.8
EPSS Низкий

Описание

A flaw was found in libvirt. An unprivileged local user could exploit an integer overflow vulnerability in the NodeGetFreePages RPC handler. This flaw allows crafted values to bypass a size check, leading to an undersized memory buffer. Subsequently, real NUMA node data can overwrite this buffer. This heap buffer overflow can corrupt the root libvirt daemon's memory, potentially leading to a denial of service or local privilege escalation.

EPSS

Процентиль: 7%
0.00169
Низкий

7.8 High

CVSS3

Дефекты

CWE-190

Связанные уязвимости

CVSS3: 7.8
ubuntu
около 1 месяца назад

A flaw was found in libvirt. An unprivileged local user could exploit an integer overflow vulnerability in the NodeGetFreePages RPC handler. This flaw allows crafted values to bypass a size check, leading to an undersized memory buffer. Subsequently, real NUMA node data can overwrite this buffer. This heap buffer overflow can corrupt the root libvirt daemon's memory, potentially leading to a denial of service or local privilege escalation.

CVSS3: 7.8
redhat
около 1 года назад

A flaw was found in libvirt. An unprivileged local user could exploit an integer overflow vulnerability in the NodeGetFreePages RPC handler. This flaw allows crafted values to bypass a size check, leading to an undersized memory buffer. Subsequently, real NUMA node data can overwrite this buffer. This heap buffer overflow can corrupt the root libvirt daemon's memory, potentially leading to a denial of service or local privilege escalation.

msrc
8 дней назад

Libvirt: integer overflow in nodegetfreepages rpc handler leading to heap buffer overflow

CVSS3: 7.8
debian
около 1 месяца назад

A flaw was found in libvirt. An unprivileged local user could exploit ...

CVSS3: 7.8
github
около 1 месяца назад

A flaw was found in libvirt. An unprivileged local user could exploit an integer overflow vulnerability in the NodeGetFreePages RPC handler. This flaw allows crafted values to bypass a size check, leading to an undersized memory buffer. Subsequently, real NUMA node data can overwrite this buffer. This heap buffer overflow can corrupt the root libvirt daemon's memory, potentially leading to a denial of service or local privilege escalation.

EPSS

Процентиль: 7%
0.00169
Низкий

7.8 High

CVSS3

Дефекты

CWE-190