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CVE-2025-8277

3.1 low SSVC exploitation: none Deferred
NVD · CVE.org

A flaw was found in libssh's handling of key exchange (KEX) processes when a client repeatedly sends incorrect KEX guesses. The library fails to free memory during these rekey operations, which can gradually exhaust system memory. This issue can lead to crashes on the client side, particularly when using libgcrypt, which impacts application stability and availability.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 1

  1. First seenCVSS 3.1NVD modified 2026-10-18 21:10

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 4