CVE-2020-13556

CRITICAL

EIP Stack Group OpENer 2.3 and development commit 8c73bf3 - Remote Code Execution via Out-of-bounds Write

Title source: llm
STIX 2.1

Description

An out-of-bounds write vulnerability exists in the Ethernet/IP server functionality of EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A specially crafted series of network requests can lead to remote code execution. An attacker can send a sequence of requests to trigger this vulnerability.

References (1)

Core 1
Core References
Exploit, Technical Description, Third Party Advisory x_refsource_confirm
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1170

Scores

CVSS v3 9.8
EPSS 0.0452
EPSS Percentile 90.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (1)
opener_project/opener 2.3
Published Dec 11, 2020
Tracked Since Feb 18, 2026