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CVE-2026-55200

Опубликовано: 17 июн. 2026
Источник: nvd
CVSS3: 8.1
CVSS3: 8.3
EPSS Низкий

Описание

libssh2 through 1.11.1, fixed in commit 7acf3df contains an out-of-bounds write vulnerability in ssh2_transport_read() that fails to enforce upper bounds on packet_length field. Remote attackers can send crafted SSH packets with excessively large packet_length values to corrupt heap memory and achieve remote code execution.

Уязвимые конфигурации

Конфигурация 1
cpe:2.3:a:libssh2:libssh2:*:*:*:*:*:*:*:*
Версия до 1.11.1 (включая)

EPSS

Процентиль: 79%
0.02027
Низкий

8.1 High

CVSS3

8.3 High

CVSS3

Дефекты

CWE-680

Связанные уязвимости

CVSS3: 8.1
ubuntu
около 2 месяцев назад

libssh2 through 1.11.1, fixed in commit 7acf3df contains an out-of-bounds write vulnerability in ssh2_transport_read() that fails to enforce upper bounds on packet_length field. Remote attackers can send crafted SSH packets with excessively large packet_length values to corrupt heap memory and achieve remote code execution.

CVSS3: 7.1
redhat
около 2 месяцев назад

libssh2 through 1.11.1, fixed in commit 7acf3df contains an out-of-bounds write vulnerability in ssh2_transport_read() that fails to enforce upper bounds on packet_length field. Remote attackers can send crafted SSH packets with excessively large packet_length values to corrupt heap memory and achieve remote code execution.

CVSS3: 8.1
msrc
около 1 месяца назад

libssh2 - Out-of-Bounds Write via Unchecked packet_length in transport.c

CVSS3: 8.1
debian
около 2 месяцев назад

libssh2 through 1.11.1, fixed in commit 7acf3df contains an out-of-bou ...

CVSS3: 8.1
github
около 2 месяцев назад

libssh2 through 1.11.1, fixed in commit 7acf3df contains an out-of-bounds write vulnerability in ssh2_transport_read() that fails to enforce upper bounds on packet_length field. Remote attackers can send crafted SSH packets with excessively large packet_length values to corrupt heap memory and achieve remote code execution.

EPSS

Процентиль: 79%
0.02027
Низкий

8.1 High

CVSS3

8.3 High

CVSS3

Дефекты

CWE-680