BugZero | Fortinet BugID 1257281 - TLS negotiation fails when FortiGate initiates a c...

Fortinet - Defect ID: 1257281

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Description

TLS negotiation fails when FortiGate initiates a connection to an OpenLDAP server over LDAPS with TLS 1.3 and PQC parameters.

Change history

2026-05-07 Added: 7.4.12

8.0Defect ID: 1241533
An error condition in sslvpnd occurs when handling firewall policy schedules during peer user authentication
8.0Defect ID: 1278206
HTTPS GUI access fails when using a Low Encryption license after upgrading to FortiOS 7.4.11
8.0Defect ID: 1273729
Error condition in IPS occurs when handling high volumes of application traffic through FortiGate
8.0Defect ID: 1265180
Memory usage issues caused by logging on FortiCarrier-4400F
8.0Defect ID: 1257281
TLS negotiation fails when FortiGate initiates a connection to an OpenLDAP server over LDAPS with TLS 1.3 and PQC parameters