PT-2021-6358 · Microsoft · Windows Update Client+1

Abdelhamid Naceri · Published 2021-06-08 · Updated 2023-12-28 · CVE-2021-38634

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Microsoft Windows Update Client (affected versions not specified)

Description The issue is related to insufficient access control in the Microsoft Windows Update Client, which can be exploited to elevate privileges. This could allow an attacker to affect the system.

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

LPE

Improper Privilege Management

Weakness Enumeration

CWE-264

CWE-269

Related Identifiers

BDU:2022-01377

CVE-2021-38634

ZDI-21-1075

Affected Products

Windows Update Client

Windows

References · 10

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38634 · Security Note
• https://bdu.fstec.ru/vul/2022-01377 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38634 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-1075 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-38634 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-38634 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-38634 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-38634 · Vendor Advisory
• https://cybersecurity-help.cz/vdb/SB2021091437 · Note
• https://t.me/cvenotify/20956 · Telegram Post