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CVE-2021-38406

Delta Electronics DOPSoft 2 Out-of-Bounds Write

Affects Delta Electronics DOPSoft 2 version 2.00.07 and prior, through the parsing of specific project files. No fixed version is listed in the advisory data.

Published
Last modified
published
Listed in CISA KEV
Actively exploited
None on Exploit-DB, Metasploit or GitHub

Summary

The affected software is Delta Electronics DOPSoft 2, an engineering program used to configure Delta industrial operator panels. A flaw in how it processes certain project files can let an attacker run code within the program's current process.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original 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.

Timeline

  1. CVE published
  2. Added to CISA KEV

    CISA has evidence of exploitation in the wild

  3. CISA remediation deadline

    Due date for US federal agencies to patch

  4. Record last updated
  5. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • Delta Electronics DOPSoft 2

    From unspecified · through 2.00.07

References 1

us-cert.cisa.gov

FAQ

Questions about CVE-2021-38406

What does this mean?

DOPSoft 2 does not properly validate user-supplied data when it parses certain project files. This causes out-of-bounds writes, which can lead to arbitrary code running in the context of the current process.Source: cisa.gov

Am I affected, and how do I check?

DOPSoft 2 version 2.00.07 and prior are affected. Check the installed DOPSoft 2 version against that range.Source: cisa.gov

What should I do about it?

The available data names no fixed version to upgrade to. Check Delta Electronics' channels for an updated release of DOPSoft 2 beyond 2.00.07.Source: cisa.gov

Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-08-25, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data

What if there's no patch?

The data gives no workaround. Limit risk by not opening project files from untrusted or unknown sources, since the flaw is triggered when a specially crafted project file is parsed.Source: cisa.gov