VULNERABILITY INTELLIGENCE
CVE-2017-2790
CVSS score8.8 HIGH
EPSS probability1.89%
CISA KEVNot currently listed
Published2017-02-24
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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.
Weakness classification
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer