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CVE-2021-38406

Out-of-bounds Write: Is CVE-2021-38406 real, exploitable, or a false positive? Here's the community verdict.

Community verdict: No field verdicts yet. Be the first practitioner to weigh in.

signals

public sources

Exploited in wild
Yes
CISA KEV · Aug 25, 2022
Public exploit
None known
Metasploit/EDB/PoC
Base severity
7.8 High
CVSS
Exploitation prob.
76%
FIRST EPSS
Weakness
CWE-787 · Out-of-bounds Write
CWE

Confirmed exploited in the wild. Patch this first, regardless of the base score.

cisa ssvc

CISA Vulnrichment · assessed

Exploitation
Active
in the wild
Automatable
No
at scale
Technical impact
Total
on success

CISA decision, by how critical the affected system is to you:

  • low impact → Track
  • medium impact → Attend
  • high impact → Act

Track: normal patch cycle · Track*: watch closely · Attend: patch sooner · Act: patch now. About SSVC ↗

baseline read

auto · not a community verdict

Real — exploited in the wild

CISA confirms active exploitation. Treat scanner hits as true positives unless your specific version or config is unaffected.

Based on CISA KEV

Confirm or dispute →
Affected:Deltaww

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

Published · Added to CISA KEV (342 days after publication)

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timeline

  1. CISA SSVC assessment · exploitation: active
  2. Added to VulnCheck KEV · reported exploited in the wild
  3. Added to CISA KEV · confirmed exploited in the wild
  4. Published by NVD

Score and exploit changes tracked since .

Community ground truth

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In your experience, is this finding real and exploitable?

awaiting field verdicts
Real, but not a risk here
Not a real issue

Curated baseline: TruePositive's read from public sources is Real & exploitable — a starting point, not a community verdict.

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Field notes & remediation

Verdicts are the quick signal. Notes are the evidence and fixes behind them.

  • 0
    Field note · TruePositive EditorialCurated

    Delta Electronics DOPSoft 2 Improper Input Validation Vulnerability — 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. Listed in the CISA KEV catalog (added 2022-08-25) — confirmed exploited in the wild, not theoretical. FIRST EPSS puts the chance of exploitation in the next 30 days at ~76%. Treat it as real and prioritize remediation over triage.

  • 0
    Remediation · TruePositive EditorialCurated

    Required action for Delta Electronics DOPSoft 2: The impacted product is end-of-life and should be disconnected if still in use. CISA set a federal remediation due date of 2022-09-15. After patching, verify the vulnerable path is no longer reachable before closing the finding.

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Same weakness: CWE-787 · Out-of-bounds Write.