What is CVE-2021-38406?

CVE-2021-38406 is a high-severity vulnerability in Delta Electronics Dopsoft 2, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-09-17.

How severe is CVE-2021-38406?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2021-38406 known to be exploited?

Yes. CVE-2021-38406 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-08-25), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.

Buffer overflow in Delta Electronics Dopsoft 2

CVE-2021-38406

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 vulnerab…

Vulnerability class: Buffer Overflow

EPSS: 0.621 (98.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Delta Electronics Dopsoft 2 — versions unspecified

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-08-25. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-09-15.

Required action: The impacted product is end-of-life and should be disconnected if still in use.

Public proof-of-concept exploits

References

us-cert.cisa.gov/ics/advisories/icsa-21-252-02 (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-38406?: CVE-2021-38406 is a high-severity vulnerability in Delta Electronics Dopsoft 2, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-09-17.
How severe is CVE-2021-38406?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-38406 known to be exploited?: Yes. CVE-2021-38406 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-08-25), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.