[ CVE-2020-1350 · Published 14 Jul 2020 ]
Microsoft Windows DNS Server Remote Code Execution Vulnerability
Exploited · CISA KEV CVSS 10.0
EPSS 97%Fix available
[ Why it matters ]Priority signals
- Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2021-11-03
- EPSS: 97% chance of exploitation in the next 30 days (higher than 100% of CVEs)
- Critical severity: CVSS 10.0
[ Description ]Official description
A remote code execution vulnerability exists in Windows Domain Name System servers when they fail to properly handle requests, aka 'Windows DNS Server Remote Code Execution Vulnerability'.
CISA: 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.
[ Fixes ]Fixes and patches
CISA required action (US federal deadline 3 May 2022): Apply updates per vendor instructions.
- Patch on portal.msrc.microsoft.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
[ References ]References
- packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.htmlThird Party AdvisoryVDB Entry
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1350PatchVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource