CVE-2025-8277
LOW3.1CVSS v3
—CVSS v2
0.40%
EPSS (exploit probability)
CWE-401CWE
Description
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.
CVSS v3 vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Affected routers (0)
No routers currently mapped to this CVE in our database.