PT-2021-5684 · Microsoft · Windows

Hao Li · Published 2021-07-13 · Updated 2023-12-28 · CVE-2021-34489

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 Windows (affected versions not specified)

Description The issue is related to incorrect code generation management in the DirectWrite application programming interface of Microsoft Windows operating systems. It allows remote attackers to execute arbitrary code by using a specially crafted file. The estimated number of potentially affected devices worldwide is not available. There is no information about real-world incidents where this issue was exploited.

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:2022-00123

CVE-2021-34489

Affected Products

Windows

References · 10

• https://bdu.fstec.ru/vul/2022-00123 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34489 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-34489 · Security Note
• https://safe-surf.ru/specialists/bulletins-nkcki/667116 · Security Note
• https://osv.dev/vulnerability/CVE-2021-34489 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34489 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-34489 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34489 · Vendor Advisory
• https://t.me/cvenotify/17890 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021071333 · Note