CVE-2026-120399

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

November 10, 2026

Last Seen

November 10, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

High Severity CVE-2026-120399 Vulnerability in flightctl Allows Denial of Service61.5

Red Hat disclosed CVE-2026-120399, a high-severity vulnerability in flightctl that allows unauthenticated clients to block new connections by stalling TLS handshakes. This issue arises from synchronous TLS handshakes without timeouts, impacting service availability. The affected products include sev...

Public Exploits

Checking GitHub for proof-of-concept code…

Related Clusters (1)

High Severity CVE-2026-120399 Vulnerability in flightctl Allows Denial of Service

1h ago·1 sources

Related Entities

DDoS Denial of Service Red Hat Flightctl OpenShift Container Platform Red Hat Edge Manager Red Hat Enterprise Linux

CVE-2026-120399

Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Public Exploits

CVE Details

Related Clusters (1)

High Severity CVE-2026-120399 Vulnerability in flightctl Allows Denial of Service

Related Articles (2)

Red Hat CVE-2026-120399

CVE-2026-120399 Vulnerability Allows Unauthenticated Blocking of New Connections (CVSS 7.5)

Related Entities