CVE-2021-38406
Delta Electronics DOPSoft 2 Improper Input Validation Vulnerability
Delta Electronics DOPSoft 2
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.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 25 August 2022. US federal agencies were required to remediate it by 15 September 2022.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 76.4%, which is higher than 99.5% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2021-38406 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2021-38406.
What does CVE-2021-38406 affect?
CVE-2021-38406 affects Delta Electronics DOPSoft 2. 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.
How severe is CVE-2021-38406?
CVE-2021-38406 is rated HIGH with a CVSS base score of 7.8. EPSS puts the probability of exploitation in the next 30 days at 76.4%, higher than 99.5% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 15 September 2022.
How should organisations respond to CVE-2021-38406?
Apply the vendor patch for Delta Electronics DOPSoft 2 as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.