VDB
DEBIAN-CVE-2025-8277
DEBIAN-CVE-2025-8277
PUBLISHED
CVSS 3.0999999046325684 LOW
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.
Risk Scores
CVSS 3.1
3.0999999046325684
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | libssh | 0.9.8-0+deb11u1, 0.9.8-0, 0.9.7-0 |
| Debian:14 | libssh | 0.11.2-1, 0.11.2-1, 0 |
| Debian:13 | libssh | 0, 0.11.2-1, 0 |
| Debian:12 | libssh | 0, 0.10.5-3+hurd.1, 0.10.5-3 |
Exploit Intelligence
- 8051-2.json (github-poc)
Timeline
- Sep 9, 2025 CVE Published
- Apr 28, 2026 CVE Updated