Improper input validation in Microsoft Windows Server
CVE-2020-1350
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'.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.967 (99.9th percentile), scored .
Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 99.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.914 · newest: 0.967 · change: +0.054
Affected products
- Microsoft Windows Server — versions 2019, 2019 (Core installation), 2016
- Microsoft Windows Server 2008 — versions r2
- Microsoft Windows Server 2012 — versions r2
- Microsoft Windows Server 2016
- Microsoft Windows Server 2019
- Microsoft Windows Server, Version 1903 (Server Core Installation) — versions unspecified
- Microsoft Windows Server, Version 1909 (Server Core Installation) — versions unspecified
- Microsoft Windows Server, Version 2004 (Server Core Installation) — versions unspecified
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1350 (Patch, Vendor Advisory)
- packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.html (VDB Entry, Third Party Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2020-1350?
- CVE-2020-1350 is a critical-severity vulnerability in Microsoft Windows Server, classified under Improper Input Validation. CVSS score: 10.0/10. Published 2020-07-14.
- How severe is CVE-2020-1350?
- Critical severity. CVSS v3 base score is 10.0 out of 10.
- Is CVE-2020-1350 known to be exploited?
- Yes. CVE-2020-1350 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 85 public proof-of-concept repositories are indexed.