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CVE

CWE

Training

CVE-2026-7598

Published: May 1, 2026

Modified: May 4, 2026

PUBLISHED

CVSS v3.1

7.3

HIGH

Description

A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauth_password of the file src/userauth.c. Such manipulation of the argument username_len/password_len leads to integer overflow. The attack may be launched remotely. The name of the patch is 256d04b60d80bf1190e96b0ad1e91b2174d744b1. A patch should be applied to remediate this issue.

Vendor	Product	Versions
n/a	libssh2	affected `1.11.0` affected `1.11.1`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

References

VDB-360555 | libssh2 userauth.c userauth_password integer overflow

vdb-entry

technical-description

VDB-360555 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

Submit #805564 | libssh2 <= 1.11.1 Integer Overflow

third-party-advisory

https://github.com/libssh2/libssh2/pull/1858

issue-tracking

patch

https://github.com/libssh2/libssh2/commit/256d04b60d80bf1190e96b0ad1e91b2174d744b1

patch

https://github.com/libssh2/libssh2/

product

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