CVE-2011-1331
JustSystems Ichitaro 2005 through 2011, Ichitaro Government 6, Ichitaro Government 2006 through 2010, Ichitaro Portable, Ichitaro Pro, and…
- Published
- Updated
- Reserved
- Assigned by
- jpcert
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.
Timeline
ID reserved
By jpcert
- 4 months later
· 4 months later
Published
- 13 years later
· 13 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 5.6% · top 7.1% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 9.3.
Weakness
Affected products
n/a
- affected n/a
References (7)
- 44956 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 48283 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- JVNDB-2011-000043 (opens in a new tab)third-party-advisoryx_refsource_JVNDBx_transferred
- ichitaro-unspec-bo(68072) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://www.justsystems.com/jp/info/js11001.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.symantec.com/connect/blogs/targeted-attacks-2011-using-ichitaro-zero-day-vulnerability (opens in a new tab)x_refsource_MISCx_transferred
- JVN#87239473 (opens in a new tab)third-party-advisoryx_refsource_JVNx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2011-1339 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2011-1331)Record last updated .