VULNERABILITY INTELLIGENCE

CVE-2021-36767

CVSS score9.8 CRITICAL
EPSS probability0.69%
CISA KEVNot currently listed
Published2021-10-08
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

In Digi RealPort through 4.10.490, authentication relies on a challenge-response mechanism that gives access to the server password, making the protection ineffective. An attacker may send an unauthenticated request to the server. The server will reply with a weakly-hashed version of the server's access password. The attacker may then crack this hash offline in order to successfully login to the server.

Weakness classification

  • CWE-916: Use of Password Hash With Insufficient Computational Effort

Primary references