CVE-2025-37730

Published May 6, 2025

Last updated a month ago

CVSS medium 6.5

Overview

Description
Improper certificate validation in Logstash's TCP output could lead to a man-in-the-middle (MitM) attack in “client” mode, as hostname verification in TCP output was not being performed when the ssl_verification_mode => full was set.
Source
bressers@elastic.co
NVD status
Awaiting Analysis

Risk scores

CVSS 3.1

Type
Secondary
Base score
6.5
Impact score
4.2
Exploitability score
2.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Severity
MEDIUM

Weaknesses

bressers@elastic.co
CWE-295

Social media

Hype score
Not currently trending

  1. CVE-2025-37730 Improper certificate validation in Logstash's TCP output could lead to a man-in-the-middle (MitM) attack in “client” mode, as hostname verification in TCP output was … https://t.co/tZA6yMYDGr

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    6 May 2025

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References

Sources include official advisories and independent security research.