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Fencer Vulns
high 7.8

CVE-2021-38406 kev in the critical feed json

Delta Electronics DOPSoft 2 Out-of-Bounds Write

published 2021-09-17 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-24858

cvss
7.8
version 3.1, CNA
cisa kev
Exploited
added 2022-08-25
epss
76.4%
EPSS 76.4% chance of exploitation in 30 days, percentile 99.5%
public exploits
0
none known

Summary

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.

Patch / fix

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

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-252-02 updated cvss 7.8

Delta Electronics DOPSoft 2 (Update A)

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Timeline

  1. Published
  2. Added to CISA KEV
  3. CISA patch deadline
  4. CISA SSVC: exploitation active

Known exploited

Added
4 y ago
Patch by
2022-09-15 (4 y ago)
Ransomware
Not known
Required action
The impacted product is end-of-life and should be disconnected if still in use.
Vendor, product
Delta Electronics, DOPSoft 2
CISA name
Delta Electronics DOPSoft 2 Improper Input Validation Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
21 mo ago

Exploit prediction

76.43% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Delta Electronics DOPSoft 2

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.