Security readout for executives and security teams
Plain-English summary
CVE-2020-25170 is an Excel macro/formula injection issue in B. Braun OnlineSuite exports. If unsafe user-controlled fields are placed into an Excel file, opening the export can expose the recipient to spreadsheet-borne actions. The source bundle does not provide CVSS, patch status, or confirmed exploitation.
Executive priority
Prioritize confirmation if OnlineSuite is used in clinical or operational workflows. The absence of CVSS and exploitation evidence lowers certainty, but spreadsheet export flaws can cross trust boundaries and affect staff workstations.
Technical view
The flaw is CWE-1236 in the OnlineSuite export feature. Version AP 3.0 and earlier mishandle multiple input fields when generating Excel output, allowing injection into exported spreadsheet content. Available sources identify the affected product and class, but do not include detailed impact scoring or remediation specifics.
Likely exposure
Exposure appears limited to environments running B. Braun OnlineSuite AP 3.0 or earlier, especially workflows where users export data to Excel and open those files in spreadsheet software. The bundle does not identify hosted, internet-facing, or default exposure characteristics.
Exploitation context
CISA KEV is false in the bundle, and no cited source states active exploitation. The risk likely depends on an attacker influencing exported fields and a user opening the resulting spreadsheet. No public exploit status is established by the provided evidence.
Researcher notes
Evidence is narrow: affected product, version boundary, CWE, and export-field handling are documented. Do not assume network exploitability, patient impact, or a vendor patch from this bundle. Validation should focus on versioning, export workflows, and vendor advisory follow-up.
Mitigation direction
- Check B. Braun and CISA advisory guidance for vendor-supported remediation.
- Identify and prioritize OnlineSuite AP 3.0 or earlier deployments.
- Treat OnlineSuite Excel exports as untrusted files until remediated.
- Restrict export access to users with operational need.
- Use spreadsheet protections that warn about or disable active content.
Validation and detection
- Inventory B. Braun OnlineSuite versions and confirm AP release level.
- Review whether Excel export functionality is enabled and used.
- Map which input fields can appear in exported spreadsheets.
- Confirm users handling exports have macro protections enabled.
- Track vendor advisory status for patches or configuration guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-1236: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2020-25170 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://us-cert.cisa.gov/ics/advisories/icsma-20-296-01CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Formula Elements in a CSV File
Improper Neutralization of Formula Elements in a CSV File represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.