CVE-2020-11637

Automation Runtime TFTP Service DoS Vulnerability

State: Published
Severity: 5.8 Medium
Published: Oct 15, 2020
Updated: Sep 16, 2024
Reserved: Apr 8, 2020

Description

A memory leak in the TFTP service in B&R Automation Runtime versions <N4.26, <N4.34, <F4.45, <E4.53, <D4.63, <A4.73 and prior could allow an unauthenticated attacker with network access to cause a denial of service (DoS) condition.

Scores

CVSS	Score	Vector	Source
3.1	5.8 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L	ABB

Weaknesses

CWE-401 Improper Release of Memory Before Removing Last Reference

Affected Products

Product	Versions
Automation RuntimeB&R	4.1x and earlierAffected 4.2x to before N4.26Affected 4.3x to before N4.34Affected 4.4x to before F4.45Affected 4.5x to before E4.53Affected 4.6x to before D4.63Affected 4.7x to before A4.73Affected

References

https://www.br-automation.com/downloads_br_productcatalogue/assets/1595163815396-de-original-1.0.pdf

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.