How severe is CVE-2023-35126?

CVE-2023-35126 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-2023-35126 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-35126?

CVE-2023-35126 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-2023-35126?

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-2023-35126 published?

CVE-2023-35126 was published on 2023-10-19 and last updated on 2026-06-17.

CVE-2023-35126

CVE-2023-35126 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Justsystems Easy Postcard Max
Published: 2023-10-19
Last modified: 2026-06-17

Description

An out-of-bounds write vulnerability exists within the parsers for both the "DocumentViewStyles" and "DocumentEditStyles" streams of Ichitaro 2023 1.0.1.59372 when processing types 0x0000-0x0009 of a style record with the type 0x2008. A specially crafted document can cause memory corruption, which can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

Frequently asked questions

What is CVE-2023-35126?: An out-of-bounds write vulnerability exists within the parsers for both the "DocumentViewStyles" and "DocumentEditStyles" streams of Ichitaro 2023 1.0.1.59372 when processing types 0x0000-0x0009 of a style record with the type 0x2008. A specially crafted document can cause memory corruption, which can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.
How severe is CVE-2023-35126?: CVE-2023-35126 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-2023-35126 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-35126?: CVE-2023-35126 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-2023-35126?: 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-2023-35126 published?: CVE-2023-35126 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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