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TI-2023-08556 Aliases CVE-2023-22291GHSA-mg4q-w2rm-gvpm

An invalid free vulnerability exists in the Frame stream parser functionality of Ichitaro…

Priority HIGH 69CWE-590Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An invalid free vulnerability exists in the Frame stream parser functionality of Ichitaro 2022 1.0.1.57600. A specially crafted document can lead to an attempt to free a stack pointer, which causes memory corruption. An attacker can provide a malicious file to trigger this vulnerability.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00452 39th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
IchitaroIchitaro2022 1.0.1.57600—No fix listedCNA
  • Ichitaro VendorIchitaro Affected 2022 1.0.1.57600 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:justsystems:ichitaro_2022:1.0.1.57600:*:*:*:*:*:*:*1.0.1.57600VulnerableIchitaro 2023
  • cpe:2.3:a:justsystems:ichitaro_2022:1.0.1.57600:*:*:*:*:*:*:* Versions 1.0.1.57600 Vulnerable ·Ichitaro 2023

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-22291
  2. 2026-10-03 Alias added: GHSA-mg4q-w2rm-gvpm

References

  • TI-2023-08835 Heap-based buffer overflow in Ichitaro CVSS 3.1HIGH 7.8
  • TI-2022-22197 Heap-based buffer overflow in Ichitaro CVSS 3.1HIGH 7.8
  • TI-2022-21428 Use after free in Ichitaro CVSS 3.1HIGH 7.8
  • TI-2009-01008 Unspecified vulnerability in JustSystems Ichitaro 13, 2004 through 2008, Lite2, and… CVSS 2.0HIGH 9.3
  • TI-2007-01860 Ichitaro 2005 through 2007, and possibly related products, allows remote attackers to… CVSS 2.0MEDIUM 4.3

Sources