It has been reported that the attack vector involves SlideShowWindows.View.GotoNamedShow.
Exploit:Win32/Controlppt.W, Exploit:Win32/Controlppt.X, and Exploit-PPT.d/Trojan.PPDropper.F.
Vulnerable component: Microsoft PowerPoint
CVSSv3 score: CVSS:3.0/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 a boundary error when parsing malformed records within the PowerPoint file. A remote attacker can create a specially crafted .ppt 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.