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CVE-2020-13556

CRITICAL
9.8
CVSS Score
Published: December 11, 2020 at 03:13 AM UTC
Updated: June 17, 2026 at 02:53 AM UTC
1 product affected across 1 vendorOpener

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Severity
CRITICAL9.8
Exploit prediction
EPSS 5%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Opener· Opener Project
95%
2.3EIP Stack Group OpENer 2.3EIP Stack Group OpENer development commit 8c73bf3

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRMExploitTechnical DescriptionThird Party Advisory
Source: [email protected]
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1170

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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