Stack-based buffer overflow in deltaww ScreenEditor
Priority MEDIUM 44CWE-121Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
All versions prior to Delta Electronic’s CNCSoft version 1.01.34 (running ScreenEditor versions 1.01.5 and prior) are vulnerable to a stack-based buffer overflow, which could allow an attacker to remotely execute arbitrary code.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.04922 92nd percentileScored 2026-11-07
Fix Fixed CNCSoft (Delta Industrial Automation): v1.01.34
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 |
|---|---|---|---|---|---|
| deltaww | ScreenEditor | all versions – 1.01.5 | — | No fix listed | CNA |
| deltaww | CNCSoft | all versions to before v1.01.34 | v1.01.34 | Patch available | CNA |
Remediation
- Fix · CNA CNCSoft (Delta Industrial Automation) Fixed in v1.01.34
Timeline
- 2026-10-02 Threatist record created from CVE-2022-4634
- 2026-10-03 Alias added: GHSA-pwhp-27h2-crqj
References
More deltaww Cncsoft vulnerabilities
- TI-2018-07523 Stack-based buffer overflow in ICS-CERT CNCSoft with ScreenEditor CVSS 3.1HIGH 8.8
- TI-2021-19738 Stack-based buffer overflow in Delta Electronics CNCSoft CVSS 3.1HIGH 7.8
- TI-2018-07487 Out-of-bounds read in ICS-CERT CNCSoft with ScreenEditor CVSS 3.0HIGH 8.1
- TI-2022-01286 Delta Electronics CNCSoft Stack-based Buffer Overflow CVSS 3.1HIGH 7.8
- TI-2025-30214 Out-of-bounds Write in CNCSoft CVSS 4.0HIGH 7.3
- TI-2025-30213 Out-of-bounds Write in CNCSoft CVSS 4.0HIGH 7.3
Sources
- CVE-2022-4634 · CVE Program
- CVE-2022-4634 · NVD
- FIRST EPSS
- GHSA-pwhp-27h2-crqj · 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