VDB

DEBIAN-CVE-2021-36367

DEBIAN-CVE-2021-36367 PUBLISHED CVSS 8.100000381469727 HIGH

PuTTY through 0.75 proceeds with establishing an SSH session even if it has never sent a substantive authentication response. This makes it easier for an attacker-controlled SSH server to present a later spoofed authentication prompt (that the attacker can use to capture credential data, and use that data for purposes that are undesired by the client user).

Risk Scores

CVSS 3.1
8.100000381469727
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Affected Products

VendorProductVersions
Debian:13putty0, 0, 0
Debian:14putty0, 0, 0
Debian:12putty0, 0, 0
Debian:11putty0.74-1, 0.74-1+deb11u1~deb10u1, 0.74-1+deb11u1~deb10u2

Timeline

  • Jul 9, 2021 CVE Published
  • Apr 28, 2026 CVE Updated
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