CVE-2025-8277 — Libssh: memory exhaustion via repeated key exchange in libssh
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 o…
Published: 2025-09-09 · CVSS: 3.1 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7