CVE-2021-38406: Delta Electronics DOPSoft 2 Improper Input Validation Vulnerability
Vulnerability summary
CVE-2021-38406 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in Delta Electronics DOPSoft 2. It is known to be exploited: CISA lists it, first on 25-08-2022. EPSS estimates a 76.43% chance of exploitation in the next 30 days, higher than 99.5% of scored vulnerabilities.
Timeline
- 17-09-2021PublishedVulnerability first disclosed.
- 25-08-2022Added to CISA KEVDelta Electronics DOPSoft 2 Improper Input Validation Vulnerability
- 15-09-2022CISA remediation dueThe impacted product is end-of-life and should be disconnected if still in use.
- 21-10-2025Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
76.43%
Chance of exploitation in the next 30 days
Percentile
100%
Versus all other CVEs
30-day change
0.00 pp
From 76.43% on 21-09-2026
Known exploited
Compare KEV catalogs
CISA KEVListed- Added
- 25-08-2022
- Federal due date
- 15-09-2022
CISA required action
The impacted product is end-of-life and should be disconnected if still in use. www.cisa.gov/uscert/ics/advisories/icsa-21-252-02 nvd.nist.gov/vuln/detail/CVE-2021-38406
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
2 vendors · 2 products
References
2 links- us-cert.cisa.gov/ics/advisories/icsa-21-252-02X Refsource MISCThird Party AdvisoryUS Government Resource
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-38406Government ResourceUS Government Resource