HOMEVULNERABILITIESCVE-2023-38128
HIGH

CVE-2023-38128

CWE-843Published: October 19, 2023· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

An out-of-bounds write vulnerability exists in the "HyperLinkFrame" stream parser of Ichitaro 2023 1.0.1.59372. A specially crafted document can cause a type confusion, which can lead to memory corruption and eventually arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

NVD Source

Technical Analysis

CVE-2023-38128 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

justsystems19 product(s)
easy postcard maxichitaro 2021ichitaro 2022ichitaro 2023ichitaro government 10ichitaro government 8ichitaro government 9ichitaro pro 3ichitaro pro 4ichitaro pro 5just government 3just government 4+7
Source: NVD CPE · 19 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (6)

Quick Facts

CVE IDCVE-2023-38128
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-843
CISA KEVNo
Affected1 vendor(s)
PublishedOct 19, 2023

Related CVEs (CWE-843)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2023-38128 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.