PT-2025-48434 · Codesys · Codesys Control Runtime System

Abb Ag · Published 2025-12-01 · Updated 2025-12-01 · CVE-2025-41739

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions CODESYS Control Runtime System (affected versions not specified)

Description An unauthenticated remote attacker, who exploits a race condition, can trigger an out-of-bounds read via crafted socket communication in the communication servers of the CODESYS Control runtime system. This can potentially cause a denial of service. The issue affects systems running on Linux and QNX.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2025-16472

CVE-2025-41739

Affected Products

Codesys Control Runtime System

References · 9

• https://bdu.fstec.ru/vul/2025-16472 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-41739 · Security Note
• https://twitter.com/VulmonFeeds/status/1995443214405271789 · Twitter Post
• https://twitter.com/CVEnew/status/1995437681413591073 · Twitter Post
• https://t.me/CVEtracker/38529 · Telegram Post
• https://store.codesys.com/en/codesys.html · Note
• https://certvde.com/de/advisories/VDE-2025-099 · Note
• https://t.me/cveNotify/144388 · Telegram Post
• https://api-www.codesys.com/fileadmin/user_upload/CODESYS_Group/Ecosystem/Up-to-Date/Security/Security-Advisories/Advisory2025-09_CDS-94934.pdf · Note