CVE-2024-23621Network attack vector

Unauthenticated code execution via license server overflow

Published Jan 25, 2024 · Updated Jun 3, 2025

Buffer overflow in the eFilm Workstation 4.1 through 4.2 license server allows remote attackers to execute arbitrary code. The public disclosure does not identify the request field, function, or buffer-size calculation that mishandles untrusted data. Network access to the license server is sufficient; no authentication or user interaction is required, and successful exploitation runs attacker-controlled code.

CVSS severity10.0
Critical
EPSS probability1.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in the eFilm Workstation 4.1 through 4.2 license server allows remote attackers to execute arbitrary code. The public disclosure does not identify the request field, function, or buffer-size calculation that mishandles untrusted data. Network access to the license server is sufficient; no authentication or user interaction is required, and successful exploitation runs attacker-controlled code.

The record

CVE
CVE-2024-23621
Published
Jan 25, 2024
Updated
Jun 3, 2025
Vendor
Merge Healthcare Incorporated
Product
eFilm Workstation
Classifications
CWE-131, CWE-120, CAPEC-100, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 25, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 3, 2025Record 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=4.1 <=4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Merge Healthcare Incorporated · eFilm Workstationversion=4.1 <=4.2

Published CVSS scores

10.0Exodus IntelligenceAV:N/AC:L/Au:N/C:C/I:C/A:C
10.0Exodus IntelligenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

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-131Incorrect Calculation of Buffer Size
CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC-100Overflow Buffers
T1210Exploitation of Remote Services

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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