Answer in brief
CVE-2021-38406 records a High severity vulnerability in Delta Electronics DOPSoft 2 Out-of-Bounds Write. The current sources mark it as known exploited. The current feed maps Delta Electronics/DOPSoft 2 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Delta Electronics/DOPSoft 2 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Delta Electronics/DOPSoft 2generic | unspecified | Not reported |
Published upstream
Sep 17, 2021
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Aug 25, 2022
Evidence: source:kev:kev:kev:recordDelta 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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2021-38406 records a High severity vulnerability in Delta Electronics DOPSoft 2 Out-of-Bounds Write. The current sources mark it as known exploited. The current feed maps Delta Electronics/DOPSoft 2 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Delta Electronics/DOPSoft 2 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Delta Electronics/DOPSoft 2generic | unspecified | Not reported |
Published upstream
Sep 17, 2021
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Aug 25, 2022
Evidence: source:kev:kev:kev:recordDelta 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.
Quoted source text, attributed separately from HOL analysis.