Early warning

Early Warning of Upcoming CVE Disclosures

Get ahead of new CVEs on the systems you care about.

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Overview

GreyNoise research shows that spikes in traffic targeting older CVEs often precede new CVE disclosures for that same vendor within weeks. These early warnings give organizations time to harden systems, patch, monitor, or block probing IPs.

By detecting shifts in attacker reconnaissance prior to CVE disclosure, GreyNoise provides a critical window of opportunity to prepare before a threat materializes.

How GreyNoise Helps You
Prepare for New CVEs

Provides Time to Prepare

When a new CVE hits critical perimeter systems, it can trigger emergency response and disruption. Early warnings from GreyNoise let teams prepare in advance and minimize impact

Aligns Risk Assessments to Real-World Threat Activity

GreyNoise shows which vendors and technologies are seeing abnormal reconnaissance levels, keeping risk assessments aligned with real-world signals.

Improves Resource Allocation

Defenders can focus investments, patching, and monitoring on upcoming threats most likely to impact them.

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Enables Proactive Blocking

Use GreyNoise query-based, dynamic blocklists to stop attacks as your organization patches exposed systems.

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Explore Available Fields

Filter by category & search available IP fields and their uses with GreyNoise.
Categories
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NAME
Description & Use
ASN Count
Count of IPs grouped by ASN. Supports ASN-level threat analysis.
Protocol
Protocol (e.g., TCP/UDP) used in scanning activity. Adds layer-4 context.
Port
Port observed in scanning activity. Useful for identifying targeted services.
Destination ASNs
List of ASNs targeted by the IP. Helps show which networks are being scanned.
Sensor Hits
Total number of events GreyNoise sensors recorded from this IP. Indicates activity volume.
Source Latitude
Latitude of IP’s registered location. Useful for geo-mapping.
Destination Cities
List of cities where scanning traffic was observed. Useful for geo-targeting analysis.
Sensor Count
Number of distinct sensors that saw the IP. Higher values indicates wider scanning footprint.
First Seen
Date the IP was first observed by GreyNoise. Indicates activity lifetime.
VPN Service
Name of the VPN service associated with the IP. Useful for attribution and filtering.
VPN
Flags if the IP belongs to a VPN provider. Suggests identity masking or evasive behavior.
Updated At
Date/time when the tag was last updated.
Slug
Short identifier for the tag. Useful in queries and API lookups.
References
References (e.g., CVE pages, docs) supporting the tag. Provides analyst enrichment sources.
Recommended Block
Indicates whether IPs with this tag should be blocked. Supports automated policy decisions.
Name
Display name of the tag. Analyst-facing label for quick recognition.
Exploitation Activity Threat IP Count (1d)
Total number of threat IPs GreyNoise observed scanning or exploiting this vulnerability today.
Exploitation Activity Threat IP Count (30d)
Total number of threat IPs GreyNoise observed scanning or exploiting this vulnerability in the last 30 days. Useful for long-term prioritization and trend analysis.
Exploitation Activity Threat IP Count (10d)
Total number of threat IPs GreyNoise observed scanning or exploiting this vulnerability in the last 10 days.
Exploitation Activity Benign IP Count (30d)
Total number of benign IPs GreyNoise observed scanning or exploiting this vulnerability in the last 30 days.
Exploitation Activity Benign IP Count (10d)
Total number of benign IPs GreyNoise observed scanning or exploiting this vulnerability in the last 10 days.
Exploitation Activity Seen
Whether GreyNoise has observed activity related to this CVE.
Exploitation Activity Benign IP Count (1d)
Total number of benign IPs GreyNoise observed scanning or exploiting this vulnerability today.
Exploitation Stats Number of Botnets Exploiting Vulnerability
Total number of botnets exploiting the vulnerability.
Exploitation Activity
Observed IPs scanning or exploiting the vulnerability today, in the last 10 days, and the last 30 days.
Exploitation Stats Number of Threat Actors Exploiting Vulnerability
Total number of known threat actors exploiting the vulnerability.
Exploitation Details Registered in KEV
Whether exploitation has been registered in the KEV (Known Exploited Vulnerabilities) database.
Exploitation Stats Number of Available Exploits
Total number of exploits available (public + commercial).
Exploitation Stats
Statistical data about exploitation, including number of exploits available, and number of threat actors and botnets exploiting the vulnerability.
Exploitation Details Exploit Found
Indicates whether a working exploit is publicly available. Confirms attacker capability and should increase remediation priority.
Exploitation Details EPSS Score
EPSS score (Exploit Prediction Scoring System) associated with the exploitation.
Exploitation Details Attack Vector
The method attackers use to exploit the vulnerability (e.g., network, local, adjacent). Helps assess exposure across internet-facing vs. internal assets.

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