EIPStackGroup OpENer 2.3-558-g1e99582 CPF Message cpf.c CreateCommonPacketFormatStructure out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in EIPStackGroup OpENer 2.3-558-g1e99582. The impacted element is the function CreateCommonPacketFormatStructure of the file source/src/enet_encap/cpf.c of the component CPF Message Handler. Executing a manipulation can lead to out-of-bounds. This vulnerability is tracked as CVE-2026-38719. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability classified as problematic was found in EIPStackGroup OpENer 2.3-558-g1e99582. This vulnerability affects the function CreateCommonPacketFormatStructure of the file source/src/enet_encap/cpf.c of the component CPF Message Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. CVE summarizes:

OpENer v2.3-558-g1e99582 contains an out-of-bounds read vulnerability in the Common Packet Format (CPF) parser, specifically in CreateCommonPacketFormatStructure() in source/src/enet_encap/cpf.c. A crafted ENIP/CPF message can supply an attacker-controlled item_count value that is not consistently validated against the remaining data_length of the CPF slice

This vulnerability was named CVE-2026-38719 since 04/06/2026. The exploitation appears to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 6.2
ADP CISA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/06/2026 CVE reserved
05/18/2026 +42 days Advisory disclosed
05/18/2026 +0 days VulDB entry created
05/18/2026 +0 days VulDB entry last update

Sourcesinfo

Status: Not defined

CVE: CVE-2026-38719 (🔒)
GCVE (CVE): GCVE-0-2026-38719
GCVE (VulDB): GCVE-100-364492

Entryinfo

Created: 05/18/2026 20:41
Changes: 05/18/2026 20:41 (64)
Complete: 🔍
Cache ID: 216::103

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