MicroDicom DICOM Viewer Out-of-bounds Write
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
MicroDicom DICOM Viewer suffers from an out-of-bounds write vulnerability. Remote attackers are able to exploit this issue to potentially execute arbitrary code on affected installations of DICOM Viewer. User interaction is required to exploit the vulnerability in that the user must either visit a malicious website or open a malicious DICOM file locally.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| MicroDicom | DICOM Viewer | up to 2025.2 (Build 8154) | — | No fix listed | CNA |
- DICOM Viewer VendorMicroDicom Affected up to 2025.2 (Build 8154) Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microdicom:dicom_viewer:*:*:*:*:*:*:*:* | — | — | MicroDicom |
- cpe:2.3:a:microdicom:dicom_viewer:*:*:*:*:*:*:*:* Versions — — ·MicroDicom
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-5943
- 2026-10-03 Alias added: GHSA-863r-cfhv-7rmg
More MicroDicom vulnerabilities
- TI-2024-19074 MicroDicom DICOM Viewer Stack-based Buffer Overflow CVSS 4.0HIGH 8.7
- TI-2025-24608 MicroDicom DICOM Viewer Out-of-bounds Write CVSS 4.0HIGH 8.6
- TI-2024-22193 MicroDicom DICOM Viewer Improper Authorization in Handler for Custom URL Scheme CVSS 4.0HIGH 8.6
- TI-2025-24861 MicroDicom DICOM Viewer Out-of-bounds Read CVSS 4.0HIGH 8.6
- TI-2024-16811 MicroDicom DICOM Viewer Out-of-Bounds Write CVSS 3.1HIGH 7.8
- TI-2024-14708 MicroDicom DICOM Heap-based Buffer Overflow CVSS 3.1HIGH 7.8
Sources
- CVE-2025-5943 · CVE Program
- CVE-2025-5943 · NVD
- FIRST EPSS
- GHSA-863r-cfhv-7rmg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences