PT-2020-4374 · Microsoft · Office Excel+1

Kdot · Published 2020-10-13 · Updated 2023-12-31 · CVE-2020-16930

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Microsoft Excel (affected versions not specified)

Description: A remote code execution issue exists in Microsoft Excel software due to its failure to properly handle objects in memory. This could allow an attacker to run arbitrary code in the context of the current user. If the user has administrative rights, the attacker could take control of the system, install programs, view, change, or delete data, or create new accounts with full user rights. The exploitation requires a user to open a specially crafted file with an affected version of Microsoft Excel. This could be achieved through email or web-based attacks, where an attacker convinces the user to open the malicious file.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Buffer Overflow

Access of Uninitialized Pointer

Memory Corruption

Weakness Enumeration

CWE-119

CWE-824

CWE-787

Related Identifiers

BDU:2020-04887

CVE-2020-16930

ZDI-20-1252

ZDI-20-1256

Affected Products

Office Excel

Office

References · 7

• https://zerodayinitiative.com/advisories/ZDI-20-1252 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-20-1256 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-16930 · Security Note
• https://bdu.fstec.ru/vul/2020-04887 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16930 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16930 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-16930 · Vendor Advisory