Microsoft Windows DNS Server Remote Code Execution Vulnerability (CVE-2020-1350)
Severity: critical · Patch status: patched · Since 2021-11-03 · CVE-2020-1350
Microsoft Windows DNS Servers fail to properly handle requests, allowing an attacker to perform remote code execution in the context of the Local System Account. The vulnerability is also known under the moniker of SIGRed. CISA added CVE-2020-1350 to its Known Exploited Vulnerabilities catalog on Nov 3, 2021, which means attackers are exploiting it in the wild.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by May 3, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
