CVE-2020-6087

Katalog CVE

CVSS 7.5 · High EPSS 4,3%

Kerentanan Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') pada rockwellautomation flex i/o 1794-aent/b firmware. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

An exploitable denial of service vulnerability exists in the ENIP Request Path Data Segment functionality of Allen-Bradley Flex IO 1794-AENT/B. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability If the ANSI Extended Symbol Segment Sub-Type is supplied, the device treats the byte following as the Data Size in words. When this value represents a size greater than what remains in the packet data, the device enters a fault state where communication with the device is lost and a physical power cycle is required.

Rincian

Terbit di NVD

14 Oktober 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

EPSS (30 hari)

4,3% peluang dieksploitasi; lebih tinggi dari 90,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://talosintelligence.com/vulnerability_reports/TALOS-2020-1007 exploit · advisory pihak ketiga