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CVE-2026-39834

OpenSSH

Descrição

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%Risco 0.95
Ver fonte
Publicação
2026-05-22 04:16:24
Versões afetadas
unknown
Tipo
Software crítico
Vetor
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H