What is the CVSS score of CVE-2023-35126?

CVE-2023-35126 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.5%.

Is there a public PoC exploit available for CVE-2023-35126?

Yes, a public proof-of-concept exploit is available for CVE-2023-35126. Prioritise patching immediately. EPSS: 0.5%.

Easy Postcard Max CVE-2023-35126

HIGH

Improper Validation of Array Index (CWE-129)

2023-10-19 talos-cna@cisco.com

Buffer Overflow RCE Easy Postcard Max Ichitaro 2021 Ichitaro 2022 Ichitaro 2023 Ichitaro Government 10 Ichitaro Government 8 Ichitaro Government 9 Ichitaro Pro 3 Ichitaro Pro 4 Ichitaro Pro 5 Just Government 3 Just Government 4 Just Government 5 Just Office 3 Just Office 4 Just Office 5 Just Police 3 Just Police 4 Just Police 5

7.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Oct 19, 2023 - 17:15 nvd

HIGH 7.8

DescriptionNVD

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.

AnalysisAI

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. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-129. 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. Affected products include: Justsystems Easy Postcard Max, Justsystems Ichitaro 2021, Justsystems Ichitaro 2022, Justsystems Ichitaro 2023, Justsystems Ichitaro Government 10.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.