CVE-2020-12038

Denial of service via EDSParser memory corruption

Published May 19, 2020 · Updated Aug 4, 2024

Memory corruption in Rockwell Automation EDS Subsystem 28.0.1 and earlier allows attackers to cause denial of service via crafted EDS files. The EDS subsystem square-bracket matching algorithm mishandles specially crafted EDS input and can crash the EDSParser COM object. Exploitation requires the crafted file to be processed, and the documented consequence is service interruption without stated confidentiality or integrity impact.

CVSS severity5.5
Medium
EPSS probability2.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in Rockwell Automation EDS Subsystem 28.0.1 and earlier allows attackers to cause denial of service via crafted EDS files. The EDS subsystem square-bracket matching algorithm mishandles specially crafted EDS input and can crash the EDSParser COM object. Exploitation requires the crafted file to be processed, and the documented consequence is service interruption without stated confidentiality or integrity impact.

The record

CVE
CVE-2020-12038
Published
May 19, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, CWE-119, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 19, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NVDAV:N/AC:M/Au:N/C:N/I:N/A:P
5.5NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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