Memory corruption via out-of-bounds DCM read
Published May 1, 2025 · Updated May 1, 2025
Out-of-bounds read in MicroDicom DICOM Viewer 2025.1 and earlier allows attackers to corrupt application memory via a malicious DCM file. CISA identifies the defect as an out-of-bounds read but does not disclose the affected file-processing component or unchecked DCM field that drives the read. Exploitation requires a user to open the crafted file; the documented consequence is application memory corruption, not independently established code execution.
Summary
What happened
Out-of-bounds read in MicroDicom DICOM Viewer 2025.1 and earlier allows attackers to corrupt application memory via a malicious DCM file. CISA identifies the defect as an out-of-bounds read but does not disclose the affected file-processing component or unchecked DCM field that drives the read. Exploitation requires a user to open the crafted file; the documented consequence is application memory corruption, not independently established code execution.
The record
- CVE
- CVE-2025-36521
- Published
- May 1, 2025
- Updated
- May 1, 2025
- Vendor
- MicroDicom
- Product
- MicroDicom DICOM Viewer
- Classifications
- CWE-125, T1204.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 1, 2025CVE publishedPublication date reported by the CVE source.
- May 1, 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?
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- Affected versionversion=0 <=2025.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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