CVE-2021-21777

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Published Jun 17, 2021 CVSS 3.1 · 10.0 Critical EPSS 1.7% KEV · Not listed

Description

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

EIP Stack Group

affected

Version	Status	Constraints
`EIP Stack Group OpENer 2.3 ,EIP Stack Group OpENer development commit 8c73bf3`	affected	—

Configuration 1 [-]

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

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-8949	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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact None

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Complete

Integrity Impact None

Availability Impact Complete

This CVE is not in the KEV list.

Exploit prediction score: 1.7% (1.667% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1234

History

No history.

Subscriptions

Opener Project Opener

Weaknesses

CWE-125

Sources

CVE record Updated: Aug 3, 2024, 6:23 PM

Status: PUBLISHED
Assigner: talos
Published: Jun 17, 2021, 10:48 AM
Updated: Aug 3, 2024, 6:23 PM
Reserved: Jan 4, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:36 AM

Status: Modified
Published: Jun 17, 2021, 11:15 AM
Modified: Jun 17, 2026, 3:36 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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