Pyramid Solutions EtherNet IP Adapter DLL Kit up to 5.6.0 memory corruption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.6	$0-$5k	0.51+

Summaryinfo

A vulnerability classified as very critical was found in Pyramid Solutions EtherNet IP Adapter DLL Kit, EtherNet IP Adapter DLL Kit with CIP Security, EtherNet IP Adapter Development Kit, EtherNet IP Adapter Development Kit with CIP Security, EtherNet IP Scanner DLL Kit, EtherNet IP Scanner DLL Kit with CIP Security, EtherNet IP Scanner Development Kit and EtherNet IP Scanner Development Kit with CIP Security up to 5.6.0. The impacted element is an unknown function. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2026-78012. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Pyramid Solutions EtherNet IP Adapter DLL Kit, EtherNet IP Adapter DLL Kit with CIP Security, EtherNet IP Adapter Development Kit, EtherNet IP Adapter Development Kit with CIP Security, EtherNet IP Scanner DLL Kit, EtherNet IP Scanner DLL Kit with CIP Security, EtherNet IP Scanner Development Kit and EtherNet IP Scanner Development Kit with CIP Security up to 5.6.0. Affected by this issue is an unknown function. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue in the NetStaX EtherNet/IP Stack prior to v5.6.1 could allow a large Class 3 explicit-message request to exceed the application-side receive buffer without generating an error or warning. The result could be memory corruption, a device crash, or a potential remote attack vector without the originating device receiving a CIP error indicating that the request could not be processed.

The advisory is shared for download at pyramidsolutions.com. This vulnerability is handled as CVE-2026-78012 since 08/22/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/01/2026).

Upgrading to version 5.6.1 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• Pyramid Solutions

Name

• EtherNet IP Adapter Development Kit
• EtherNet IP Adapter Development Kit with CIP Security
• EtherNet IP Adapter DLL Kit
• EtherNet IP Adapter DLL Kit with CIP Security
• EtherNet IP Scanner Development Kit
• EtherNet IP Scanner Development Kit with CIP Security
• EtherNet IP Scanner DLL Kit
• EtherNet IP Scanner DLL Kit with CIP Security

Version

• 5.0
• 5.1
• 5.2
• 5.3
• 5.4
• 5.5
• 5.6.0

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.6

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (icscert): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: EtherNet IP Adapter DLL Kit/EtherNet IP Adapter DLL Kit with CIP Security/EtherNet IP Adapter Development Kit/EtherNet IP Adapter Development Kit with CIP Security/EtherNet IP Scanner DLL Kit/EtherNet IP Scanner DLL Kit with CIP Security/EtherNet IP Scanner Development Kit/EtherNet IP Scanner Development Kit with CIP Security 5.6.1

Timelineinfo

08/22/2026 CVE reserved
09/01/2026 +10 days Advisory disclosed
09/01/2026 +0 days VulDB entry created
09/01/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: pyramidsolutions.com
Status: Confirmed

CVE: CVE-2026-78012 (🔒)
GCVE (CVE): GCVE-0-2026-78012
GCVE (VulDB): GCVE-100-397712

Entryinfo

Created: 09/01/2026 17:24
Changes: 09/01/2026 17:24 (74)
Complete: 🔍
Cache ID: 216::103

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Discussion

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