PT-2021-3089 · Microsoft · Office+1

L4 + 2 · Published 2021-04-02 · Updated 2023-08-02 · CVE-2021-31175

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 Office (affected versions not specified)

Description The issue is related to incorrect management of code generation when processing a COM object Graph in Microsoft Office and Microsoft Office Web Apps. This can be exploited by an attacker to execute arbitrary code using a specially crafted malicious file or a specially formed malicious web page.

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

RCE

Use After Free

Code Injection

Weakness Enumeration

CWE-416

CWE-94

Related Identifiers

BDU:2021-02712

CVE-2021-31175

ZDI-21-580

Affected Products

Office

Office Excel

References · 12

• https://zerodayinitiative.com/advisories/ZDI-21-580 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31175 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-02712 · Security Note
• https://osv.dev/vulnerability/CVE-2021-31175 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31175 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-31175 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31175 · Vendor Advisory
• https://t.me/cvenotify/14587 · Telegram Post
• https://t.me/cvenotify/14402 · Telegram Post
• https://t.me/cvenotify/14406 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021051110 · Note
• https://t.me/cvenotify/14405 · Telegram Post