CVE-2023-34366

Exp

A use-after-free vulnerability exists in the Figure stream parsing functionality of Ichitaro 2023 1.0.1.59372. A specially crafted document can cause memory corruption, resulting in arbitrary code execution. Victim would need to open a malicious file to trigger this vulnerability.

Published: 2023-10-19 Last update: 2025-11-04 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-34366 is rated High Exploit Risk (60.1/100): CVSS High severity, with low exploitation likelihood (EPSS 0.18%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2023-34366

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2023-34366

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 0.13% 0.18% +0.05%
2 2025-11-18 0.18% 0.13% -0.05%
3 2025-04-15 — 0.18% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-34366

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]

Weakness enumeration for CVE-2023-34366

Affected software / configurations for CVE-2023-34366

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

References for CVE-2023-34366

cvelogic Threat Intelligence