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CVE-2021-38406

7.8, high Known exploited

Delta Electronics DOPSoft 2 Improper Input Validation Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
7.8, high high CVSS v3.1
EPSS, next 30 days
76% higher than 99.5% of scored CVEs
Exploitation
Confirmed in the wild
Published
17 Sept 20215 years ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 25 Aug 2022. US federal agencies had to remediate by 15 Sept 2022, a deadline that has passed.

Required action. The impacted product is end-of-life and should be disconnected if still in use.

Description

Delta Electronic DOPSoft 2 (Version 2.00.07 and prior) lacks proper validation of user-supplied data when parsing specific project files. This could result in multiple out-of-bounds write instances. An attacker could leverage this vulnerability to execute code in the context of the current process.

Details

Vendor
Delta Electronics
Product
DOPSoft 2
Weakness
CWE-787 (opens in a new tab)
Status
Analyzed
Updated
17 Jun 2026
Assigner
ics-cert@hq.dhs.gov

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References 2

Advisories 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Beyond this page

Is CVE-2021-38406 in your network?

This page tells you how dangerous CVE-2021-38406 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2021-38406 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.