KNOWN EXPLOITED VULNERABILITY DOSSIER

CVE-2025-39682

Linux · Kernel

Linux Kernel contains an improper check for unusual or exceptional conditions vulnerability in the TLS receive path which allows a zero-length record retrieved from the rx_list to bypass the intended recvmsg() record-type handling, potentially causing subsequent TLS records to be processed using incorrect zero-copy and queuing assumptions. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version.

CISA KEV Added: 2026-09-18
Severity Rating: High (CVSS 9)
Legal Indictments: 0 Cases
Catalog Status: Active KEV Mandate

Correlated Federal Court Cases & Exploitation Context (0)

No federal court indictment in the current archive directly cites CVE-2025-39682. This record tracks its addition to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2026-09-18.

Associated Government Advisories

Tracked under CISA Known Exploited Vulnerabilities Binding Operational Directive 22-01 for federal civilian agency remediation.

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