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CVE-2016-4290

22
FAUCET Score

CVE-2016-4290 is an integer overflow vulnerability affecting Hancom Office 2014. When processing a Hangul HShow Document (.hpt), the application fails to validate an integer addition, leading to an undersized buffer allocation. This allows for a heap-based buffer overflow, potentially resulting in arbitrary code execution. This vulnerability has a CVSSv3 score of 7.8 (High), indicating a significant risk. It requires user interaction (UI:R) to open a malicious document, but the attack complexity is low (AC:L), and it can lead to complete compromise of confidentiality, integrity, and availability (C:H/I:H/A:H). Currently, there is no evidence of active exploitation (KEV: No), nor are there publicly available exploit modules or proof-of-concept code (Metasploit, Nuclei, ExploitDB: None). Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
<= 9.1.0.2176CPE matchmatch criteria
cpe:2.3:a:hancom:hancom_office_2014:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.13%
Probability of exploitation in next 30 days
EPSS Percentile
80.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0213 is in the 80th percentile among its peer group of 11,615 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

securityfocus.com / bid/92325
talosintelligence.com / reports/TALOS-2016-0145
ExploitTechnical DescriptionThird Party AdvisoryVDB Entry