SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-5195

Hancom NEO versions 9.6.1.5183 and earlier have a buffer Overflow vulnerability that leads remote attackers to execute arbitrary commands when performing the hyperlink Attributes in document.

CRITICAL 9.8EPSS 2.60%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Hancom NEO versions 9.6.1.5183 and earlier have a buffer Overflow vulnerability that leads remote attackers to execute arbitrary commands when performing the hyperlink Attributes in document.

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
2.60% probability · 85th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-119
Affected
hancom/thinkfree office neo
Source
vuln@krcert.or.kr
EPSS trend
0%3%5%27 October 2026: 2.60%27 October 202627 October 2026

EPSS 2.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.