This vulnerability was publicly disclosed by Disco Jonny.
Vulnerable component: Microsoft Word
CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C
CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability is caused by boundary error when processing an unchecked word count in Word files. A remote attacker can create a specially crafted Word file, trick the victim into opening it and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability results in compromise of vulnerable system.
Note: this vulnerability is being actively exploited.
- Microsoft Word Document - (malformed pointer) (PoC) [Exploit-DB]