CVE-2021-38422

Local privilege escalation via cleartext sensitive data

Published Nov 3, 2021 · Updated Sep 16, 2024

Cleartext storage in Delta Electronics DIALink 1.2.4.0 and earlier allows local users to access application data and escalate privileges. ICS-CERT identifies sensitive information stored in cleartext but does not disclose the data, file, or component responsible. Low-privilege local access is required, and successful exploitation can compromise confidentiality, integrity, and availability on the host.

CVSS severity7.8
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cleartext storage in Delta Electronics DIALink 1.2.4.0 and earlier allows local users to access application data and escalate privileges. ICS-CERT identifies sensitive information stored in cleartext but does not disclose the data, file, or component responsible. Low-privilege local access is required, and successful exploitation can compromise confidentiality, integrity, and availability on the host.

The record

CVE
CVE-2021-38422
Published
Nov 3, 2021
Updated
Sep 16, 2024
Vendor
Delta Electronics, Inc.
Product
DIALink
Classifications
CWE-312
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 3, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All <=1.2.4.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Delta Electronics, Inc. · DIALinkversion=All <=1.2.4.0

Published CVSS scores

7.8ICS-CERTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-312Cleartext Storage of Sensitive Information

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo