Out-of-bounds write in Hancom Office
Priority LOW 26CWE-787Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
Hancom Office 2018 10.0.0.8214 and earlier, Hancom Office NEO 9.6.1.10472 and earlier, Hancom Office 2014 9.1.1.4540 and earlier, Hancom Office 2010 8.5.8.1724 and earlier versions have a heap overflow vulnerability when handling Compound File in document. This result in a program crash or denial of service conditions.
Why it matters now
EPSS 0.0068 52nd 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 |
|---|---|---|---|---|---|
| Hancom | Hancom Office | Hancom Office 2018 10.0.0.8214 and earlier, Hancom Office NEO 9.6.1.10472 and earlier, Hancom Office 2014 9.1.1.4540 and earlier, Hancom Office 2010 8.5.8.1724 and earlier versions | — | No fix listed | CNA |
- Hancom Office VendorHancom Affected Hancom Office 2018 10.0.0.8214 and earlier, Hancom Office NEO 9.6.1.10472 and earlier, Hancom Office 2014 9.1.1.4540 and earlier, Hancom Office 2010 8.5.8.1724 and earlier versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hancom:hancom_office_2010:*:*:*:*:*:*:*:* | up to 8.5.8.1724 | Vulnerable | Hancom |
| cpe:2.3:a:hancom:hancom_office_2014:*:*:*:*:*:*:*:* | up to 9.1.1.4540 | Vulnerable | Hancom |
| cpe:2.3:a:hancom:hancom_office_2018:*:*:*:*:*:*:*:* | up to 10.0.0.8214 | Vulnerable | Hancom |
| cpe:2.3:a:hancom:hancom_office_neo:*:*:*:*:*:*:*:* | up to 9.6.1.10472 | Vulnerable | Hancom |
- cpe:2.3:a:hancom:hancom_office_2010:*:*:*:*:*:*:*:* Versions up to 8.5.8.1724 Vulnerable ·Hancom
- cpe:2.3:a:hancom:hancom_office_2014:*:*:*:*:*:*:*:* Versions up to 9.1.1.4540 Vulnerable ·Hancom
- cpe:2.3:a:hancom:hancom_office_2018:*:*:*:*:*:*:*:* Versions up to 10.0.0.8214 Vulnerable ·Hancom
- cpe:2.3:a:hancom:hancom_office_neo:*:*:*:*:*:*:*:* Versions up to 9.6.1.10472 Vulnerable ·Hancom
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-5201
- 2026-10-03 Alias added: GHSA-g457-3qpj-v3gc
Sources
- CVE-2018-5201 · CVE Program
- CVE-2018-5201 · NVD
- FIRST EPSS
- GHSA-g457-3qpj-v3gc · 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