CVE-2022-26817HighCVSS 6.6

Windows DNS Server Remote Code Execution Vulnerability

Published
April 12, 2022
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2022-26817 →

📋 Description

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires an attacker to win a race condition.

How could an attacker exploit this vulnerability? In a network-based attack an attacker would need to have the privileges to query the Domain Name Service (DNS). If the timing of DNS queries is perfect, the attacker could execute code remotely on the target server.

🎯 Affected products9

  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2022
  • Windows Server 2022 (Server Core installation)
  • Windows Server, version 20H2 (Server Core Installation)

✅ Remediation

KB5012647 (Security Update) — fixed build 10.0.17763.2803 KB5012604 (Security Update) — fixed build 10.0.20348.643 KB5012599 (Security Update) — fixed build 10.0.19042.1645 KB5012596 (Security Update) — fixed build 10.0.14393.5066 KB5012670 (Monthly Rollup) — fixed build 6.3.9600.20337 KB5012639 (Security Only) — fixed build 6.3.9600.20337

🔗 References (13)