CVE•Published 2017-02-24•Modified 2026-05-13•1 article on news•5 live references•NVD data
CVE-2017-2790Justsystems · Ichitaro
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS percentile
—
Description
When processing a record type of 0x3c from a Workbook stream from an Excel file (.xls), JustSystems Ichitaro Office trusts that the size is greater than zero, subtracts one from the length, and uses this result as the size for a memcpy. This results in a heap-based buffer overflow and can lead to code execution under the context of the application.
Timeline
Published 2017-02-24
Modified 2026-05-13
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2017-2790Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Justsystems Ichitaro"All exposed Justsystems Ichitaro instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Ichitaro"HTTP body or banner mentions "Ichitaro" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2017-2790Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2017-2790Censys host search filtered to this CVE id.
grep.app
CVE-2017-2790Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2017-2790GitHub code search for direct mentions.
Google dork
"CVE-2017-2790" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.