CVE-2025-5449

Published Jul 25, 2025

Last updated 23 days ago

CVSS medium 6.5
Mysql

Overview

Description
A flaw was found in the SFTP server message decoding logic of libssh. The issue occurs due to an incorrect packet length check that allows an integer overflow when handling large payload sizes on 32-bit systems. This issue leads to failed memory allocation and causes the server process to crash, resulting in a denial of service.
Source
secalert@redhat.com
NVD status
Modified
Products
libssh

Risk scores

CVSS 3.1

Type
Secondary
Base score
6.5
Impact score
3.6
Exploitability score
2.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity
MEDIUM

Weaknesses

secalert@redhat.com
CWE-190

Social media

Hype score
Not currently trending

  1. CVE-2025-5449 A flaw was found in the SFTP server message decoding logic of libssh. The issue occurs due to an incorrect packet length check that allows an integer overflow when hand… https://t.co/zqsi6coZP2

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    25 Jul 2025

    317 Impressions

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Configurations

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References

Sources include official advisories and independent security research.