CVE-2021-38406

Name: CVE-2021-38406
Creator: NVD / NIST
Published: 2021-09-17T19:15:08.71+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10Actively ExploitedEPSS 77.89%

Last modified Jun 17, 2026

CVE-2021-38406 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. CISA has confirmed active exploitation in the wild. EPSS estimates a 77.89% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

77.89%

99.5th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Sep 15, 2022.

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Deltaww	Dopsoft	>= 2.00, <= 2.00.07

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-252-02Third Party Advisory, US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-252-02Third Party Advisory, US Government Resource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-38406US Government Resource

Timeline

Published: Sep 17, 2021
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2021-38406?

How severe is CVE-2021-38406?

CVE-2021-38406 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 77.89% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2021-38406?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-38406?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST