Improper handling of exceptional conditions in Rockwell FactoryTalk Diagnostics
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An unauthenticated remote attacker can send data to RsvcHost.exe listening on TCP port 5241 to add entries in the FactoryTalk Diagnostics event log. The attacker can specify long fields in the log entry, which can cause an unhandled exception in wcscpy_s() if a local user opens FactoryTalk Diagnostics Viewer (FTDiagViewer.exe) to view the log entry. Observed in FactoryTalk Diagnostics 6.11. All versions of FactoryTalk Diagnostics are affected.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Rockwell FactoryTalk Diagnostics | All versions of FactoryTalk Diagnostics | — | No fix listed | CNA |
- Rockwell FactoryTalk Diagnostics Vendor— Affected All versions of FactoryTalk Diagnostics Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-5807
- 2026-10-03 Alias added: GHSA-f3hv-32hf-cqw9
References
Sources
- CVE-2020-5807 · CVE Program
- CVE-2020-5807 · NVD
- FIRST EPSS
- GHSA-f3hv-32hf-cqw9 · GitHub Advisory Database · CC BY 4.0
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