KEV Intelligence is becoming Previdian.

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.

Browse feed RSS feed JSON API
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
129
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 129 High confidence With artifacts 1,742+
Reset

Displaying vulnerabilities 2226 - 2250 of 2771 in total

Query the complete API
CVE-2023-20269

Cisco Adaptive Security Appliance (ASA) Software, Cisco Firepower Threat Defense Software

Cisco
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2023-35674

Android

Google
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
—
CVE-2023-26369

Acrobat Reader

Adobe
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2021-3129

Ignition

Facade
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
PoC Nuclei
CVE-2017-6884

EMG2926

Zyxel
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2014-8361

SDK

Realtek
Confirmed
CISA
In catalog
Sensors
Observed
Added
over 1 year ago
Artifacts
PoC
CVE-2023-28434

minio

minio
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2023-41179

Trend Micro Apex One, Trend Micro Worry-Free Business Security, Trend Micro Worry-Free Business Security Services

Trend Micro, Inc.
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2023-41993

macOS

Apple
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2023-41992

macOS, iOS and iPadOS

Apple
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2023-41991

iOS and iPadOS, macOS

Apple
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2018-14667

RichFaces

[UNKNOWN]

Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2023-5217

Chrome, libvpx

Google
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2023-4211

Midgard GPU Kernel Driver, Bifrost GPU Kernel Driver, Valhall GPU Kernel Driver, Arm 5th Gen GPU Architecture Kernel Driver

Arm Ltd
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2023-28229

Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows 10 Version 20H2, Windows 11 version 21H2, Windows 10 Version 21H2, Windows 11 version 22H2, Windows 10 Version 22H2, Windows 10 Version 1507, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 Service Pack 2 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)

Microsoft
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2023-42793

TeamCity

JetBrains
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
PoC Nuclei Nessus
CVE-2023-42824

iOS and iPadOS

Apple
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2023-22515

Confluence Data Center, Confluence Server

Atlassian
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
PoC Nuclei
CVE-2023-44487

Cloud Platform

Google
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2023-36563

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 1507, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 Service Pack 2 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)

Microsoft
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2023-41763

Skype for Business Server 2015 CU13, Skype for Business Server 2019 CU7

Microsoft
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
PoC Nuclei
CVE-2023-20109

IOS, Cisco IOS XE Software

Cisco
Confirmed
CISA
In catalog
Sensors
—
Added
over 1 year ago
Artifacts
Nessus
CVE-2023-21608

Acrobat Reader

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

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.

Compare with CISA KEV →

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.

Read the methodology →

Consume the Data in Your Workflow

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.

RSS feed JSON feed API integrations

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.

Early warning alerts

Get alerts on high-impact exploitation

Receive curator-selected alerts when exploitation activity warrants attention. Each alert includes the evidence and context needed to decide what requires attention now.

Occasional high-impact alerts. Unsubscribe anytime. See our Privacy Policy.