CVE-2025-2581Network attack vector

Application crash via unchecked DICOM allocation size

Published Mar 21, 2025 · Updated Nov 3, 2025

Integer underflow in (X)MedCon Project XMedCon 0.25.0 allows remote attackers to crash the application with a crafted DICOM file. The DICOM handler converts a file-supplied 64-bit memory length to the narrower size_t used by malloc without rejecting an unrepresentable value. A user must open the file on an affected Windows build, and the resulting undersized allocation interrupts only the application.

CVSS severity5.3
Medium
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer underflow in (X)MedCon Project XMedCon 0.25.0 allows remote attackers to crash the application with a crafted DICOM file. The DICOM handler converts a file-supplied 64-bit memory length to the narrower size_t used by malloc without rejecting an unrepresentable value. A user must open the file on an affected Windows build, and the resulting undersized allocation interrupts only the application.

The record

CVE
CVE-2025-2581
Published
Mar 21, 2025
Updated
Nov 3, 2025
Vendor
(X)MedCon Project
Product
XMedCon
Classifications
CWE-191, CWE-189, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 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=0.25.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

(X)MedCon Project · XMedConversion=0.25.0

Published CVSS scores

5.0VulDB CNAAV:N/AC:L/Au:N/C:N/I:N/A:P
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
5.3VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
4.3VulDB CNACVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

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-191Integer Underflow (Wrap or Wraparound)
CWE-189Numeric Errors
T1204.002Malicious File

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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