VULNERABILITY INTELLIGENCE

CVE-2026-59842

CVSS score3.7 LOW
EPSS probability0.49%
CISA KEVNot currently listed
Published2026-07-21
Last modified2026-09-22
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Description

A flaw was found in libssh. During server-side GSSAPI key exchange, a client-supplied Curve25519 public key shorter than the expected length is copied without proper length validation, leading to an out-of-bounds heap read. This could allow a remote unauthenticated attacker to disclose small amounts of server memory.

Weakness classification

  • CWE-125: Out-of-bounds Read

Primary references