How severe is CVE-2023-38127?

CVE-2023-38127 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-38127 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-38127?

CVE-2023-38127 primarily affects Justsystems Easy Postcard Max. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-38127?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-38127 published?

CVE-2023-38127 was published on 2023-10-19 and last updated on 2026-06-17.

CVE-2023-38127

CVE-2023-38127 is a high-severity vulnerability in Justsystems Easy Postcard Max with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-190.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Justsystems Easy Postcard Max
Published: 2023-10-19
Last modified: 2026-06-17

Description

An integer overflow exists in the "HyperLinkFrame" stream parser of Ichitaro 2023 1.0.1.59372. A specially crafted document can cause the parser to make an under-sized allocation, which can later allow for memory corruption, potentially resulting in arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

Frequently asked questions

What is CVE-2023-38127?: An integer overflow exists in the "HyperLinkFrame" stream parser of Ichitaro 2023 1.0.1.59372. A specially crafted document can cause the parser to make an under-sized allocation, which can later allow for memory corruption, potentially resulting in arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.
How severe is CVE-2023-38127?: CVE-2023-38127 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-38127 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-38127?: CVE-2023-38127 primarily affects Justsystems Easy Postcard Max. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-38127?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-38127 published?: CVE-2023-38127 was published on 2023-10-19 and last updated on 2026-06-17.

References

Affected products (19)

cpe:2.3:a:justsystems:easy_postcard_max:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:ichitaro_2021:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:ichitaro_2022:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:ichitaro_2023:1.0.1.59372:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:ichitaro_government_10:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:ichitaro_government_8:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:ichitaro_government_9:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:ichitaro_pro_3:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:ichitaro_pro_4:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:ichitaro_pro_5:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:just_government_3:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:just_government_4:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:just_government_5:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:just_office_3:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:just_office_4:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:just_office_5:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:just_police_3:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:just_police_4:-:*:*:*:*:*:*:*
cpe:2.3:a:justsystems:just_police_5:-:*:*:*:*:*:*:*

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