PT-2021-2685 · Microsoft · Office Word+1

Kdot · Published 2021-04-13 · Updated 2023-12-29 · CVE-2021-28453

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 Word (affected versions not specified)

Description The issue is related to errors in code generation management in Microsoft Word, allowing remote attackers to execute arbitrary code. This can be exploited to gain unauthorized access and execute malicious code. The estimated number of potentially affected devices worldwide is not specified. There is no information provided about real-world incidents where this issue was exploited. Technical details about exploitation include the ability to execute arbitrary code, but specific API endpoints, vulnerable parameters, or function names are not mentioned.

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

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

BDU:2021-02215

CVE-2021-28453

ZDI-21-423

Affected Products

Office Word

Sharepoint Server

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2021-28453 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28453 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-02215 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-423 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28453 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-28453 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-28453 · Vendor Advisory
• https://cybersecurity-help.cz/vdb/SB2021041329 · Note
• https://t.me/cvenotify/13482 · Telegram Post