Vulnerability threat dossier
An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC). An attacker who successfully exploited the vulnerability could run a specially crafted application on a device on the network. To exploit the vulnerability, an unauthenticated attacker would be required to use MS-NRPC to connect to a domain controller to obtain domain administrator access. Microsoft is addressing the vulnerability in a phased two-part rollout. These updates address the vulnerability by modifying how Netlogon handles the usage of Netlogon secure channels. For guidelines on how to manage the changes required for this vulnerability and more information on the phased rollout, see How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472 (updated September 28, 2020). When the second phase of Windows updates become available in Q1 2021, customers will be notified via a revision to this security vulnerability. If you wish to be notified when these updates are released, we recommend that you register for the security notifications mailer to be alerted of content changes to this advisory. See Microsoft Technical Security Notifications.
VTP analyst assessment
CVE-2020-1472 is listed as known exploited by CISA KEV and ENISA EU KEV. A vulnerable Netlogon secure-channel connection to a domain controller can let an unauthenticated network attacker gain elevated domain privileges. CISA also records known ransomware campaign use.
1 record references and 1 source references passed trusted post-response validation. The current deterministic record contains 1 independent evidence group.
The cited KEV listings establish global exploitation, not activity against a specific organization.
First-party sensor telemetry is active; no disclosure-eligible deterministic observation is currently public for this CVE. This does not mean no activity was observed.
If you operate Windows domain controllers or listed compatible implementations, verify vendor remediation and enforce the required Netlogon secure-channel protections.
VTP deterministic assessment
CISA KEV lists this vulnerability as known to be exploited globally.
EPSS is 0.99; this is predictive context, not exploitation evidence.
First-party sensor telemetry is active; no disclosure-eligible deterministic observation is currently public for this CVE. This does not mean no activity was observed.
Material change ledger
Claim provenance
2 primary sources · 0 dependent secondary reports · 1 reports with unresolved independence. Repetition remains visible without multiplying confirmation.
Event history
Cisco Talos published evidence linked to CVE-2020-1472.
ENISA EU KEV reports known exploitation. VTP imported this historical entry as source baseline. This is public intelligence, not a VTP sensor observation.
CISA lists global known exploitation. This is not a VTP sensor observation.
Original publications
Ransomware incidents in Japan rose 4.7% year over year. The Gentlemen was the most active group, with leak-site listings more than doubling from January to July. Qilin ranked second and appeared to use AI, while SMEs with capital under JPY 1 billion represented 80% of victims.
Berlin's state government has confirmed that it is the target of an extortion attempt following the August compromise of the city's state administrative network, and said it will not meet the extortionists' demands. The same statement disclosed that forensic work had found further data outflows in the portfolio of the Senate Department for Mobility, Transport, Climate Protection and Environment
ENISA EU KEV lists this vulnerability as known to be exploited. This is public intelligence, not a VTP sensor observation.
Technical vulnerability data
Raw observations
First-party sensor telemetry is active; no disclosure-eligible deterministic observation is currently public for this CVE. This does not mean no activity was observed.