When opening a Hangul Hcell Document (.cell) and processing a record that uses the CSSValFormat object, Hancom Office 2014 will search for an underscore ("_") character at the end of the string and write a null terminator after it
Published Jan 6, 2017
7.8
HIGHCVSS 3.0
EPSS 2.23%
Description
When opening a Hangul Hcell Document (.cell) and processing a record that uses the CSSValFormat object, Hancom Office 2014 will search for an underscore ("_") character at the end of the string and write a null terminator after it. If the character is at the very end of the string, the application will mistakenly write the null-byte outside the bounds of its destination. This can result in heap corruption that can lead code execution under the context of the application
Affected products
-
- Version 2014 VP Trial HCell.exe Product version: 9.1.0.2176, HCellApp.dll Product version: 9.1.0.2176 HCellBook.dll Product version: 9.1.0.2176StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Hancom | Hancom Office | n/a |
|
- ≤ 9.1.0.2176
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.23% (0.02232) | 82.14th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.21% (0.02214) | 80.25th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.46% (0.00459) | 61.98th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.10% (0.00103) | 43.61th | v3 (v2023.03.01) |
| Aug 10, 2023 | 0.10% (0.00103) | 41.20th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00095) | 38.51th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.10% (0.01102) | 53.65th | v2 (v2022.01.01) |
| Sep 15, 2022 | 1.10% (0.01102) | 51.95th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.10% (0.01102) | 49.95th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.10% (0.01102) | 28.50th | v2 (v2022.01.01) |
References (2)
- http://www.securityfocus.com/bid/92327 vdb-entryx_refsource_BID
- http://www.talosintelligence.com/reports/TALOS-2016-0151/ x_refsource_MISCExploitTechnical DescriptionThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/92327 | vdb-entryx_refsource_BID | |
| http://www.talosintelligence.com/reports/TALOS-2016-0151/ | x_refsource_MISCExploitTechnical DescriptionThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.