CVE-2021-33542

高 7.0CVE-2021-33542 · 25/06/2021 公開 · 17/06/2026 更新

要点

CVE-2021-33542 は config+ (phoenixcontact), pc worx (phoenixcontact), pc worx express (phoenixcontact) に影響する深刻度「高」 (CVSS 7.0) の脆弱性です。
今後30日間に悪用される確率（EPSS）：1.8%（全脆弱性の 77.9% より高い）。
修正版の情報はまだありません。参考情報のベンダー勧告を確認してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
config+ phoenixcontact	`≤ 1.87`	修正版なし
pc worx phoenixcontact	`≤ 1.87`	修正版なし
pc worx express phoenixcontact	`≤ 1.87`	修正版なし

概要

Phoenix Contact Classic Automation Worx Software Suite in Version 1.87 and below is affected by a remote code execution vulnerability. Manipulated PC Worx or Config+ projects could lead to a remote code execution when unallocated memory is freed because of incompletely initialized data. The attacker needs to get access to an original bus configuration file (*.bcp) to be able to manipulate data inside. After manipulation the attacker needs to exchange the original file by the manipulated one on the application programming workstation. Availability, integrity, or confidentiality of an application programming workstation might be compromised by attacks using these vulnerabilities. Automated systems in operation which were programmed with one of the above-mentioned products are not affected.