Out-of-bounds write in Delta Electronics
Priority LOW 39CWE-787Published · 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
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
Delta Electronics CNCSoft-B Versions 1.0.0.2 and prior is vulnerable to an out-of-bounds write while processing project files, which may allow an attacker to execute arbitrary code.
Why it matters now
EPSS 0.02643 85th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| — | Delta Electronics | CNCSoft-B Versions 1.0.0.2 and prior | — | No fix listed | CNA |
- Delta Electronics Vendor— Affected CNCSoft-B Versions 1.0.0.2 and prior Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-27287
- 2026-10-03 Alias added: GHSA-rjww-mm6p-2h5r
References
Advisory 6
- https://us-cert.cisa.gov/ics/advisories/icsa-21-007-04
- https://www.zerodayinitiative.com/advisories/ZDI-21-044/
- https://www.zerodayinitiative.com/advisories/ZDI-21-030/
- https://www.zerodayinitiative.com/advisories/ZDI-21-043/
- https://www.zerodayinitiative.com/advisories/ZDI-21-031/
- https://www.zerodayinitiative.com/advisories/ZDI-21-041/
More deltaww Cncsoft-b vulnerabilities
- TI-2020-16615 Type confusion in Delta Electronics CVSS 3.1HIGH 7.8
- TI-2020-16614 Out-of-bounds read in Delta Electronics CVSS 3.1HIGH 7.8
- TI-2020-16612 NULL pointer dereference in Delta Electronics CVSS 3.1HIGH 7.8
- TI-2024-01808 Delta Electronics CNCSoft-B Stack-based Buffer Overflow CVSS 3.1HIGH 7.8
- TI-2024-01489 Delta Electronics CNCSoft-B DOPSoft Uncontrolled Search Path Element CVSS 3.1HIGH 7.8
- TI-2023-10639 Delta Electronics CNCSoft-B DOPSoft Stack-based buffer overflow CVSS 3.1HIGH 7.8
Sources
- CVE-2020-27287 · CVE Program
- CVE-2020-27287 · NVD
- FIRST EPSS
- GHSA-rjww-mm6p-2h5r · 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