Early exploitation intelligence

Known Exploited Vulnerabilities Feed

Browse early exploitation warnings with confidence scoring, proprietary sensor telemetry where available, CISA KEV status, and practical detection artifacts for vulnerability management, CTI, SOC, and MSSP workflows.

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Total KEVs: 2,771; Known exploited vulnerabilities tracked by Previdian
Beyond CISA KEV: 1,095; Additional exploited vulnerabilities beyond the official catalog
Observed in Sensors: 128; Tracked KEVs with sensor activity in the last 7 days
Artifacts Available: 1,742+; PoC, Nuclei, Metasploit, and virtual patch context

Explore the Previdian Feed

Filter known exploited vulnerabilities by evidence confidence, CISA status, sensor activity, recency, vendor, and available artifacts.

All KEVs 2,771 Beyond CISA 1,095 Observed 128 High confidence With artifacts 1,742+

Sensors only Reset

Displaying vulnerabilities 2301 - 2325 of 2771 in total

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ID	Product / Vendor	Confidence	CISA KEV	Sensors	Added	Artifacts
CVE-2023-35082	EPMM Ivanti	Confirmed	In catalog	—	over 1 year ago	PoC Nuclei
CVE-2023-34048	VMware vCenter Server, VMware Cloud Foundation (VMware vCenter Server) VMware	Confirmed	In catalog	—	over 1 year ago	PoC Nuclei Nessus
CVE-2024-23222	Safari, iOS and iPadOS, macOS, tvOS, visionOS Apple	Confirmed	In catalog	—	over 1 year ago	Nessus
CVE-2023-22527	Confluence Data Center, Confluence Server Atlassian	Confirmed	In catalog	—	over 1 year ago	PoC Nuclei
CVE-2024-21893	ICS, IPS Ivanti	Confirmed	In catalog	Observed	over 1 year ago	PoC Nuclei
CVE-2022-48618	tvOS, macOS, iOS and iPadOS, watchOS Apple	Confirmed	In catalog	—	over 1 year ago	Nessus
CVE-2023-4762	Chrome Google	Confirmed	In catalog	—	over 1 year ago	Nessus
CVE-2024-21762	FortiProxy, FortiOS Fortinet	Confirmed	In catalog	—	over 1 year ago	Nessus
CVE-2023-43770	Roundcube Webmail Roundcube	Confirmed	In catalog	—	over 1 year ago	Nessus
CVE-2024-21351	Windows 10 Version 1507, Windows 10 Version 1607, Windows 10 Version 1809, Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 version 21H2, Windows 11 version 22H2, Windows 11 version 22H3, Windows 11 Version 23H2, Windows Server 2016, Windows Server 2019, Windows Server 2022 Microsoft	Confirmed	In catalog	—	over 1 year ago	Nessus
CVE-2024-21412	Windows 10 Version 1809, Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 version 21H2, Windows 11 version 22H2, Windows 11 version 22H3, Windows 11 Version 23H2, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2022, 23H2 Edition (Server Core installation) Microsoft	Confirmed	In catalog	—	over 1 year ago	Nessus
CVE-2024-21410	Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 13, Microsoft Exchange Server 2019 Cumulative Update 14 Microsoft	Confirmed	In catalog	—	over 1 year ago	Nessus
CVE-2020-3259	Cisco Adaptive Security Appliance (ASA) Software Cisco	Confirmed	In catalog	—	over 1 year ago	Nessus
CVE-2024-1709	ScreenConnect ConnectWise	Confirmed	In catalog	—	over 1 year ago	PoC Nuclei
CVE-2023-29360	Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows 11 version 21H2, Windows 10 Version 21H2, Windows 11 version 22H2, Windows 10 Version 22H2, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation) Microsoft	Confirmed	In catalog	—	over 1 year ago	Nessus
CVE-2024-21338	Windows 10 Version 1809, Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 version 21H2, Windows 11 version 22H2, Windows 11 version 22H3, Windows 11 Version 23H2, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2022, 23H2 Edition (Server Core installation) Microsoft	Confirmed	In catalog	—	over 1 year ago	Nessus
CVE-2021-36380	SureLine Sunhillo	Confirmed	In catalog	—	over 1 year ago	PoC Nuclei
CVE-2023-21237	Android Google	Confirmed	In catalog	—	over 1 year ago	—
CVE-2024-23296	iOS and iPadOS, macOS, tvOS, visionOS, watchOS Apple	Confirmed	In catalog	—	over 1 year ago	Nessus
CVE-2024-23225	iOS and iPadOS, macOS, tvOS, visionOS, watchOS Apple	Confirmed	In catalog	—	over 1 year ago	Nessus
CVE-2024-27198	TeamCity JetBrains	Confirmed	In catalog	—	over 1 year ago	PoC Nuclei
CVE-2023-48788	FortiClientEMS Fortinet	Confirmed	In catalog	—	over 1 year ago	PoC Nuclei
CVE-2021-44529	Ivanti EPM Ivanti	Confirmed	In catalog	—	over 1 year ago	PoC Nuclei
CVE-2019-7256	eMerge E3-Series Linear	Confirmed	In catalog	—	over 1 year ago	PoC Nuclei
CVE-2023-24955	Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition Microsoft	Confirmed	In catalog	—	over 1 year ago	PoC

CVE-2023-35082

EPMM

Ivanti

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: PoC Nuclei

CVE-2023-34048

VMware vCenter Server, VMware Cloud Foundation (VMware vCenter Server)

VMware

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: PoC Nuclei Nessus

CVE-2024-23222

Safari, iOS and iPadOS, macOS, tvOS, visionOS

Apple

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: Nessus

CVE-2023-22527

Confluence Data Center, Confluence Server

Atlassian

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: PoC Nuclei

CVE-2024-21893

ICS, IPS

Ivanti

Confirmed

CISA: In catalog
Sensors: Observed
Added: over 1 year ago
Artifacts: PoC Nuclei

CVE-2022-48618

tvOS, macOS, iOS and iPadOS, watchOS

Apple

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: Nessus

CVE-2023-4762

Chrome

Google

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: Nessus

CVE-2024-21762

FortiProxy, FortiOS

Fortinet

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: Nessus

CVE-2023-43770

Roundcube Webmail

Roundcube

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: Nessus

CVE-2024-21351

Windows 10 Version 1507, Windows 10 Version 1607, Windows 10 Version 1809, Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 version 21H2, Windows 11 version 22H2, Windows 11 version 22H3, Windows 11 Version 23H2, Windows Server 2016, Windows Server 2019, Windows Server 2022

Microsoft

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: Nessus

CVE-2024-21412

Windows 10 Version 1809, Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 version 21H2, Windows 11 version 22H2, Windows 11 version 22H3, Windows 11 Version 23H2, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2022, 23H2 Edition (Server Core installation)

Microsoft

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: Nessus

CVE-2024-21410

Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 13, Microsoft Exchange Server 2019 Cumulative Update 14

Microsoft

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: Nessus

CVE-2020-3259

Cisco Adaptive Security Appliance (ASA) Software

Cisco

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: Nessus

CVE-2024-1709

ScreenConnect

ConnectWise

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: PoC Nuclei

CVE-2023-29360

Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows 11 version 21H2, Windows 10 Version 21H2, Windows 11 version 22H2, Windows 10 Version 22H2, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation)

Microsoft

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: Nessus

CVE-2024-21338

Windows 10 Version 1809, Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 version 21H2, Windows 11 version 22H2, Windows 11 version 22H3, Windows 11 Version 23H2, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2022, 23H2 Edition (Server Core installation)

Microsoft

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: Nessus

CVE-2021-36380

SureLine

Sunhillo

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: PoC Nuclei

CVE-2023-21237

Android

Google

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: —

CVE-2024-23296

iOS and iPadOS, macOS, tvOS, visionOS, watchOS

Apple

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: Nessus

CVE-2024-23225

iOS and iPadOS, macOS, tvOS, visionOS, watchOS

Apple

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: Nessus

CVE-2024-27198

TeamCity

JetBrains

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: PoC Nuclei

CVE-2023-48788

FortiClientEMS

Fortinet

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: PoC Nuclei

CVE-2021-44529

Ivanti EPM

Ivanti

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: PoC Nuclei

CVE-2019-7256

eMerge E3-Series

Linear

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: PoC Nuclei

CVE-2023-24955

Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition

Microsoft

Confirmed

CISA: In catalog
Sensors: —
Added: over 1 year ago
Artifacts: PoC

What Are Known Exploited Vulnerabilities?

Known exploited vulnerabilities are vulnerabilities with credible evidence of real-world exploitation. They help security teams move beyond severity-only prioritization and focus remediation on vulnerabilities attackers are actually using.

For a deeper definition, see What Is a Known Exploited Vulnerability?.

Sensor-Led Early Warning

Previdian uses proprietary sensors and private honeypots to observe exploitation attempts, corroborates those signals with vendor advisories and relevant public evidence, and keeps CISA KEV status as context.

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Evidence You Can Act On

Each warning can include confidence, evidence links, exploitation status, EPSS, CVSS, CWE, proof-of-concept references, scanner templates, and sensor telemetry where available.

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Browse the live feed, subscribe via RSS, pull the free JSON feed, or use the Pro API for deeper evidence, available telemetry summaries, virtual patches, and integration-ready delivery.

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Known Exploited Vulnerability Feed FAQ

How Previdian observes, validates, and delivers early exploitation warnings.

What is a known exploited vulnerability?

A known exploited vulnerability is a CVE with credible evidence that attackers have exploited it in real-world conditions, rather than a vulnerability assessed only through theoretical severity. See also What Is a Known Exploited Vulnerability?.

How does Previdian differ from the CISA KEV Catalog?

CISA KEV is the baseline. Previdian complements it with proprietary sensor and honeypot observations, then corroborates warnings with vendor advisories and relevant public evidence — with confidence and inspectable provenance attached. Browse known exploited vulnerabilities not in CISA KEV or compare with CISA KEV.

What does observed in sensors mean?

It means Previdian honeypots recorded activity associated with exploitation attempts for that vulnerability. Sensor observations complement, rather than replace, the wider evidence and confidence model. Explore live telemetry on Exploitation Signals.

Can teams consume the feed through RSS or an API?

Yes. Previdian provides a free RSS feed, a free JSON feed, and a Pro API for deeper evidence, available telemetry, and integration-oriented workflows. See API & Integrations and API docs.

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