PT-2021-2426 · Microsoft · Windows Dns Server+1

Published 2021-03-09 · Updated 2023-12-29 · CVE-2021-27063

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

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

Description: The issue is related to errors in processing input data in the Windows DNS server service, which can lead to a denial-of-service condition. This can be exploited by a remote attacker to cause a service disruption.

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:2021-01681

CVE-2021-27063

Affected Products

Windows

Windows Dns Server

References · 7

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27063 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-27063 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-01681 · Security Note
• https://osv.dev/vulnerability/CVE-2021-27063 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-27063 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27063 · Security Note
• https://t.me/cibsecurity/24766 · Telegram Post