CVE-2021-36767

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.

• CWE-916

• https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-02.txtThird Party Advisory
• https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-02.txtThird Party Advisory

Published

Oct 8, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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