CVE-2026-14316 Heap buffer overflow in boks_sshd revoked-key error handling

The revoked-key error path builds a human-readable failure reason using sprintf into a heap buffer. The allocated buffer is too small for the final formatted message. When sprintf writes the full message, it can write past the end of the heap allocation...

CVE-2026-14316

The boks_sshd software contains a heap buffer overflow vulnerability within its revoked-key error handling path. The root cause is the use of sprintf() to construct a human-readable failure reason into a heap buffer that is insufficiently sized for the final formatted message. This results in dat...