CVE-2021-33542

Katalog CVE

CVSS 7.0 · High EPSS 1,8%

Kerentanan Access of Uninitialized Pointer pada phoenixcontact config+, phoenixcontact pc worx +1 lainnya. Skor CVSS 3.1 7.0 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

25 Juni 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.0 (High), sumber NVD
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-824: Access of Uninitialized Pointer

EPSS (30 hari)

1,8% peluang dieksploitasi; lebih tinggi dari 77,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://cert.vde.com/en-us/advisories/vde-2021-020 advisory pihak ketiga
• https://www.zerodayinitiative.com/advisories/ZDI-21-782/ advisory pihak ketiga · vdb entry