Reference page — cumulative record through Wednesday, October 7, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2021-38406

CVE-2021-38406HIGH

Delta Electronics DOPSoft 2 Out-of-Bounds Write

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   N   R  U  H  H  H    7.8   .7643   99.5   YES

AFFECTED
  Product    Versions       Fixed
  DOPSoft 2  unspecified –  —

TIMELINE
  Aug 10  Reserved by icscert
  Sep 17  Published (CNA: icscert)
  Aug 25  Added to CISA KEV, remediation due 2022-09-15

CWE-787 · CNA: icscert · CVSS v3.1 · 2 references · KEV due September 15, 2022

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 10, 2021	Reserved	Reserved by icscert
September 17, 2021	Published	Published (CNA: icscert)
August 25, 2022	KEV ADDED	Added to CISA KEV, remediation due 2022-09-15

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Delta Electronics	DOPSoft 2	—	unspecified	—

Weaknesses

CWE-787

References (2)

https://us-cert.cisa.gov/ics/advisories/icsa-21-252-02 [x_refsource_MISC]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-38406 [government-resource]

Authoritative record: CVE-2021-38406 at cve.org

Vendors: delta electronics

Weaknesses: CWE-787

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-38406 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, October 7, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.