CVE-2021-38406

Delta Electronics DOPSoft 2 Out-of-Bounds Write

HIGH
7.8
CVSS Score
Published: September 17, 2021 at 06:54 PM UTC
Updated: June 17, 2026 at 04:02 AM UTC
2 products affected across 2 vendorsDopsoftDOPSoft

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Severity
HIGH7.8
Exploitation
CISA KEV
Exploit prediction
EPSS 76%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score76.4%

EPSS (Exploit Prediction Scoring System) estimates a 76.4% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

Delta Electronics DOPSoft 2 lacks proper validation of user-supplied data when parsing specific project files (improper input validation) resulting in an out-of-bounds write that allows for code execution.

Required Action
The impacted product is end-of-life and should be disconnected if still in use.
Ransomware Use
Unknown
Added to KEV
Aug 25, 2022
Remediation Due
Sep 15, 2022
1507 days overdue

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.00 ≤ v ≤ 2.00.07
v ≤ 2.00.07

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_MISCThird Party AdvisoryUS Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-252-02
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-38406

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHicscert
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-787

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