CVE-2021-21777

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Source

https://cve.org/CVERecord?id=CVE-2021-21777

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-21777.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2021-21777

Published

2021-06-17T11:15:07.707Z

Modified

2026-07-09T01:30:10.068232Z

Severity

10.0 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H CVSS Calculator

Summary

[none]

Details

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.

References

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

Affected packages

Git / github.com/eipstackgroup/opener

Affected ranges

Type

GIT

Repo

https://github.com/eipstackgroup/opener

Events

Introduced

150146e3058a493d5accf6d5f76ff450468d7bd7

Last affected

150146e3058a493d5accf6d5f76ff450468d7bd7

Database specific

{
    "cpe": "cpe:2.3:a:opener_project:opener:2.3:*:*:*:*:*:*:*",
    "source": "CPE_STRING",
    "extracted_events": [
        {
            "introduced": "2.3"
        },
        {
            "last_affected": "2.3"
        }
    ]
}

Affected versions

2.*

2.3

v2.*

v2.3

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-21777.json"