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CVE-2023-38127

23
FAUCET Score

CVE-2023-38127 is an integer overflow vulnerability in the "HyperLinkFrame" stream parser of Ichitaro 2023 1.0.1.59372, affecting products from justsystems. This flaw allows a specially crafted document to cause an undersized memory allocation, leading to potential memory corruption and arbitrary code execution. Rated with a CVSS score of 7.8 (High), it requires user interaction (UI:R) via a malicious file, but has low attack complexity (AC:L) and no prerequisites (PR:N). Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:justsystems:easy_postcard_max:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:justsystems:ichitaro_2021:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:justsystems:ichitaro_2022:-:*:*:*:*:*:*:*
1.0.1.59372CPE matchmatch criteria
cpe:2.3:a:justsystems:ichitaro_2023:1.0.1.59372:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:justsystems:ichitaro_government_10:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
0.65%
Probability of exploitation in next 30 days
EPSS Percentile
47.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0065 is in the 45th percentile among its peer group of 11,621 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

talosintelligence.com / vulnerability_reports/TALOS-2023-1808
jvn.jp / en/jp/JVN28846531/index.html
Third Party Advisory
talosintelligence.com / vulnerability_reports/TALOS-2023-1808
ExploitThird Party Advisory