PT-2021-6155 · Microsoft · Windows

Published 2021-12-14 · Updated 2022-07-12 · CVE-2021-43247

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 (affected versions not specified)

Description The issue is related to errors in memory object handling mechanisms in the Windows TCP/IP driver, which can allow an attacker to elevate their privileges. This can affect the system, potentially leading to local privilege escalation.

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

LPE

Memory Corruption

Improper Privilege Management

Weakness Enumeration

CWE-787

CWE-269

Related Identifiers

BDU:2022-01037

CVE-2021-43247

ZDI-21-1554

Affected Products

Windows

References · 9

• https://osv.dev/vulnerability/CVE-2021-43247 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-01037 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-43247 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-43247 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43247 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-1554 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43247 · Vendor Advisory
• https://t.me/cvenotify/24702 · Telegram Post
• https://t.me/cibsecurity/34029 · Telegram Post