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CVE-2026-39834

OpenSSH

Beschreibung

When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress. The size comparison now uses int64 to prevent truncation.

CVSS 9.1EPSS 0.525%Risiko 0.95
Quelle öffnen
Veröffentlicht
2026-05-22 04:16:24
Betroffene Versionen
unknown
Typ
Kritische Software
Vektor
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H