PT-2021-4426 · Microsoft · Windows Kernel+1

Walied Assar · Published 2021-10-12 · Updated 2023-08-01 · CVE-2021-41335

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Windows Kernel (affected versions not specified)

Description The issue is related to an elevation-of-privilege vulnerability in the Windows Kernel, which is associated with inadequate access control. This vulnerability can be exploited to allow an attacker to elevate their privileges. There is no information provided about the estimated number of potentially affected devices worldwide or 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.

LPE

Improper Privilege Management

Weakness Enumeration

CWE-264

CWE-269

Related Identifiers

BDU:2021-05056

CVE-2021-41335

Affected Products

Windows

Windows Kernel

References · 12

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-41335 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41335 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41335 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-41335 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-41335 · Security Note
• https://bdu.fstec.ru/vul/2021-05056 · Security Note
• https://osv.dev/vulnerability/CVE-2021-41335 · Vendor Advisory
• https://t.me/true_secator/2209 · Telegram Post
• https://t.me/isacarusec/4535 · Telegram Post
• https://t.me/ckure/9764 · Telegram Post
• https://t.me/cibsecurity/30483 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021101227 · Note