How severe is CVE-2016-4293?

CVE-2016-4293 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-4293 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4293?

CVE-2016-4293 affects Hancom Hancom Office 2014. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-4293?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-4293 published?

CVE-2016-4293 was published on 2017-04-20 and last updated on 2026-06-17.

CVE-2016-4293

CVE-2016-4293 is a high-severity vulnerability in Hancom Hancom Office 2014 with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Hancom Hancom Office 2014
Published: 2017-04-20
Last modified: 2026-06-17

Description

Multiple heap-based buffer overflows in the (1) CBookBase::SetDefTableStyle and (2) CBookBase::SetDefPivotStyle functions in Hancom Office 2014 VP allow remote attackers to execute arbitrary code via a crafted Hangul Hcell Document (.cell) file.

Frequently asked questions

What is CVE-2016-4293?: Multiple heap-based buffer overflows in the (1) CBookBase::SetDefTableStyle and (2) CBookBase::SetDefPivotStyle functions in Hancom Office 2014 VP allow remote attackers to execute arbitrary code via a crafted Hangul Hcell Document (.cell) file.
How severe is CVE-2016-4293?: CVE-2016-4293 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-4293 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4293?: CVE-2016-4293 affects Hancom Hancom Office 2014. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-4293?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-4293 published?: CVE-2016-4293 was published on 2017-04-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hancom:hancom_office_2014:9.1.0.2176:*:*:*:*:*:*:*

More vulnerabilities in Hancom Hancom Office 2014

CVE-2016-4298 — High (CVSS 7.8): When opening a Hangul HShow Document (.hpt) and processing a structure within the document, Hancom Office 2014 will…
CVE-2016-4296 — High (CVSS 7.8): When opening a Hangul Hcell Document (.cell) and processing a record that uses the CSSValFormat object, Hancom Office…
CVE-2016-4295 — High (CVSS 7.8): When opening a Hangul Hcell Document (.cell) and processing a particular record within the Workbook stream, an index…
CVE-2016-4294 — High (CVSS 7.8): When opening a Hangul Hcell Document (.cell) and processing a property record within the Workbook stream, Hancom Office…
CVE-2016-4292 — High (CVSS 7.8): When opening a Hangul HShow Document (.hpt) and processing a structure within the document, Hancom Office 2014 will use…
CVE-2016-4291 — High (CVSS 7.8): When opening a Hangul HShow Document (.hpt) and processing a structure within the document, Hancom Office 2014 will use…

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