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Critical severity9.1NVD Advisory· Published May 22, 2026· Updated May 28, 2026

CVE-2026-39834

CVE-2026-39834

Description

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.

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Affected products

2711

Patches

Vulnerability mechanics

References

4

News mentions

0

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