Vulnerability identifier: #VU45595

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-1581

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Microsoft Office
Client/Desktop applications / Office applications

Vendor: Microsoft

Description

The vulnerability allows a local user to escalate privileges on the system

The vulnerability exists due to a boundary error when Microsoft Office Click-to-Run (C2R) components improperly handle objects in memory. A local user can use a specially crafted application, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft Office: 2013, 2019

---

External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1581
http://www.zerodayinitiative.com/advisories/ZDI-20-1000/

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.