PT-2021-2399 · Microsoft · Windows Dns Server+1

Published 2021-03-09 · Updated 2023-12-29 · CVE-2021-26877

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

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

Description: The issue is related to incorrect code generation management in the Windows DNS server service, which can be exploited by a remote attacker to cause a denial of service. It also allows remote attackers to execute arbitrary code and affect the system.

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

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

BDU:2021-01642

CVE-2021-26877

Affected Products

Windows

Windows Dns Server

References · 18

• https://nvd.nist.gov/vuln/detail/CVE-2021-26877 · Security Note
• https://bdu.fstec.ru/vul/2021-01642 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26877 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-26877 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26877 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-26877 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26877 · Vendor Advisory
• https://t.me/cvenotify/11167 · Telegram Post
• https://t.me/cibsecurity/24771 · Telegram Post
• https://t.me/cvenotify/11502 · Telegram Post
• https://t.me/cvenotify/11181 · Telegram Post
• https://t.me/cvenotify/11287 · Telegram Post
• https://t.me/cvenotify/11286 · Telegram Post
• https://t.me/cvenotify/11166 · Telegram Post
• https://t.me/cvenotify/11179 · Telegram Post