JustSystems Ichitaro 2005 through 2011, Ichitaro Government 6, Ichitaro Government 2006 through 2010, Ichitaro Portable, Ichitaro Pro, and Ichitaro Viewer allow remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via a crafted document, as exploited in the wild in early 2011
Published Jul 18, 2011
9.3
HIGHCVSS 2.0
EPSS 5.56%
Description
JustSystems Ichitaro 2005 through 2011, Ichitaro Government 6, Ichitaro Government 2006 through 2010, Ichitaro Portable, Ichitaro Pro, and Ichitaro Viewer allow remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via a crafted document, as exploited in the wild in early 2011.
Affected products
No data.
- 6
- 2005
- 2006
- 2006
- 2007
- 2007
- 2008
- 2008
- 2009
- 2009
- 2010
- 2010
- 2011
- n/a
- n/a
- n/a
- 5.1.3.0
- 19.0.1.0
- 19.0.2.0
- 19.0.3.0
- 20.0.2.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.56% (0.05564) | 92.61th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.56% (0.05564) | 91.83th | v5 (v2026.06.15) |
| Apr 7, 2026 | 6.40% (0.06399) | 91.00th | v4 (v2025.03.14) |
| Jan 17, 2026 | 3.97% (0.03973) | 88.06th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.84% (0.02845) | 85.28th | v4 (v2025.03.14) |
| Dec 12, 2024 | 4.36% (0.04360) | 92.66th | v3 (v2023.03.01) |
| Jun 15, 2024 | 4.36% (0.04360) | 92.39th | v3 (v2023.03.01) |
| Mar 7, 2024 | 4.47% (0.04473) | 92.21th | v3 (v2023.03.01) |
| Jan 16, 2024 | 4.24% (0.04241) | 91.39th | v3 (v2023.03.01) |
| Mar 7, 2023 | 4.06% (0.04060) | 90.75th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.97% (0.04967) | 89.52th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.97% (0.04967) | 88.46th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.97% (0.04967) | 74.95th | v2 (v2022.01.01) |
References (7)
- http://jvn.jp/en/jp/JVN87239473/index.html third-party-advisoryx_refsource_JVN
- http://jvndb.jvn.jp/jvndb/JVNDB-2011-000043 third-party-advisoryx_refsource_JVNDB
- http://secunia.com/advisories/44956 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.justsystems.com/jp/info/js11001.html x_refsource_CONFIRMPatchVendor Advisory
- http://www.securityfocus.com/bid/48283 vdb-entryx_refsource_BID
- http://www.symantec.com/connect/blogs/targeted-attacks-2011-using-ichitaro-zero-day-vulnerability x_refsource_MISCExploit
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68072 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://jvn.jp/en/jp/JVN87239473/index.html | third-party-advisoryx_refsource_JVN | |
| http://jvndb.jvn.jp/jvndb/JVNDB-2011-000043 | third-party-advisoryx_refsource_JVNDB | |
| http://secunia.com/advisories/44956 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.justsystems.com/jp/info/js11001.html | x_refsource_CONFIRMPatchVendor Advisory | |
| http://www.securityfocus.com/bid/48283 | vdb-entryx_refsource_BID | |
| http://www.symantec.com/connect/blogs/targeted-attacks-2011-using-ichitaro-zero-day-vulnerability | x_refsource_MISCExploit | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/68072 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.