CVE-2025-8277
ADVISORY - nistSummary
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.
EPSS Score: 0.00052 (0.160)
Common Weakness Enumeration (CWE)
ADVISORY - nist
Missing Release of Memory after Effective Lifetime
ADVISORY - redhat
Missing Release of Memory after Effective Lifetime
NIST
CREATED
UPDATED
ADVISORY IDCVE-2025-8277
EXPLOITABILITY SCORE
1.6
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)
CVSS SCORE
3.1lowDebian
CREATED
UPDATED
ADVISORY IDCVE-2025-8277
EXPLOITABILITY SCORE
-
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-
Ubuntu
CREATED
UPDATED
ADVISORY IDCVE-2025-8277
EXPLOITABILITY SCORE
-
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-
CVSS SCORE
N/AlowAmazon
CREATED
UPDATED
ADVISORY IDALAS2023-2025-1264
EXPLOITABILITY SCORE
-
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-
CVSS SCORE
N/AmediumRed Hat
CREATED
UPDATED
ADVISORY IDCVE-2025-8277
EXPLOITABILITY SCORE
1.6
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)