CVE Vulnerability

CVE-2021-21777

An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A specially crafted network request can lead to an out-of-bounds read.

9.4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 9.2

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

10 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1234 Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:opener_project:opener:2.3:*:*:*:*:*:*:*
Information

Published : 2021-06-17 11:15

Updated : 2022-08-24 09:56

NVD link : CVE-2021-21777

Mitre link : CVE-2021-21777

Products Affected
No products.
CWE
CWE-125

Out-of-bounds Read