Operation Dust Storm
Dust Storm leveraged an Ichitaro zero-day “CVE-2013-5990” to target Japanese victims.
CVE-2013-5990 EPSS 4.6%
Unspecified vulnerability in JustSystems Ichitaro 2006 through 2011; Ichitaro Government 6, 7, and 2006 through 2010…
Official description · CVE.org
Unspecified vulnerability in JustSystems Ichitaro 2006 through 2011; Ichitaro Government 6, 7, and 2006 through 2010; Ichitaro 2011 Sou; Ichitaro 2012 Shou; Ichitaro 2013 Gen and Gen Trial Edition; Ichitaro Pro; Ichitaro Pro 2 and Pro 2 Trial Edition; Ichitaro Viewer; and Ichitaro Portable with oreplug allows remote attackers to execute arbitrary code via a crafted document.
Priority scorePatchfirst’s 0 to 100 ranking. It adds points for CISA KEV listing, ransomware use, EPSS, threat reports, public exploit code and CVSS. Every CVE page shows the breakdown. Breakdown
58.3 / 100
- Exploited
- Yes, in VulnCheck KEV
- Reports
- 1
- Tactics
- 0/15
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
First seen exploited 2 years after disclosure.
- Disclosedday 0
- First seen exploitedVulnCheck KEV evidence+2 yrs
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
No techniques linkedNo ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.
What security researchers reported
Named in 1 threat report1 reports7d2.scene7.com
Reports are matched by finding the exact id CVE-2013-5990 in their text; nobody has reviewed the match. One passage is shown per report, at most 320 characters, linked to the original.
Also mentioned in 2 community threat pulses (AlienVault OTX)
Weaker evidencePulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.
- 2016: Malware Analysis Report1 May 2026
- Operation Dust Storm23 Feb 2016