CVE-2023-43821Network attack vector

Remote code execution via crafted DPS length

Published Jan 18, 2024 · Updated Oct 21, 2024

Stack-based buffer overflow in Delta Electronics DOPSoft 2.00.00.00 through 2.00.07.04 allows remote attackers to execute code via DPS files. The DPS parser fails to bound wLogTitlesActionLen while processing log-title action data, causing an oversized length to overflow a stack buffer. Exploitation requires delivery of a crafted DPS file and user interaction to open it; successful execution runs code in the DOPSoft process context.

CVSS severity8.8
High
EPSS probability0.99%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Delta Electronics DOPSoft 2.00.00.00 through 2.00.07.04 allows remote attackers to execute code via DPS files. The DPS parser fails to bound wLogTitlesActionLen while processing log-title action data, causing an oversized length to overflow a stack buffer. Exploitation requires delivery of a crafted DPS file and user interaction to open it; successful execution runs code in the DOPSoft process context.

The record

CVE
CVE-2023-43821
Published
Jan 18, 2024
Updated
Oct 21, 2024
Vendor
Delta Electronics, Inc.
Product
DOPSoft
Classifications
CWE-119, CAPEC-100, T1204.002, T1203, T1566.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.00.00.00 <=2.00.07.04

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Delta Electronics, Inc. · DOPSoftversion=2.00.00.00 <=2.00.07.04

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8Exodus IntelligenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8Exodus IntelligenceAV:N/AC:M/Au:N/C:P/I:P/A:P

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC-100Overflow Buffers
T1204.002Malicious File
T1203Exploitation for Client Execution
T1566.001Spearphishing Attachment

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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