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Fencer Intel
high 8.5

CVE-2025-29867 json

Access of Resource Using Incompatible Type ('Type Confusion') vulnerability in Hancom Inc.

published 9mo ago modified 4mo ago also EUVD-2025-206779

cvss
8.5
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 19%
public exploits
0
none known

Summary

Access of Resource Using Incompatible Type ('Type Confusion') vulnerability in Hancom Inc. Hancom Office 2018, Hancom Inc. Hancom Office 2020, Hancom Inc. Hancom Office 2022, Hancom Inc. Hancom Office 2024 allows File Content Injection.This issue affects Hancom Office 2018: before 10.0.0.12681; Hancom Office 2020: before 11.0.0.8916; Hancom Office 2022: before 12.0.0.4426; Hancom Office 2024: before 13.0.0.3050.

Patch / fix

  • Hancom Inc. Hancom Office 2018 10.0.0.12681
  • Hancom Inc. Hancom Office 2020 11.0.0.8916
  • Hancom Inc. Hancom Office 2022 12.0.0.4426
  • Hancom Inc. Hancom Office 2024 13.0.0.3050

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
9mo ago

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • Hancom Inc. Hancom Office 2018
  • Hancom Inc. Hancom Office 2020
  • Hancom Inc. Hancom Office 2022
  • Hancom Inc. Hancom Office 2024

Classification

Weakness
  • CWE-843 Access of Resource Using Incompatible Type

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.