PT-2021-5184 · Microsoft · Windows

Published 2021-07-13 · Updated 2023-12-28 · CVE-2021-34490

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

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

Description The issue is related to the implementation of the TCP/IP protocol in Microsoft Windows, specifically due to insufficient input validation. This can be exploited by a remote attacker to cause a denial of service by sending specially crafted input to the application.

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

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2021-05984

CVE-2021-34490

Affected Products

Windows

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2021-34490 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34490 · Security Note
• https://osv.dev/vulnerability/CVE-2021-34490 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-05984 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34490 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34490 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-34490 · Vendor Advisory
• https://t.me/cvenotify/17891 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021071318 · Note
• https://t.me/cibsecurity/26160 · Telegram Post