OpenSSl version used by API Gateway 11.0 is old.
# /usr/bin/openssl version
OpenSSL 1.1.1n 15 Mar 2022
Do we have any upgrade release?
Gateway 11.0
The OpenSSL does is updated in the monthly platform patches
Gateway 11.0 latest platform patch does update openSSL
Layer7_API_PlatformUpdate_64bit_v11.0-Debian-2024-06-25.zip
SSGCONFIG Patch menu
1) Patch ID Layer7_API_PlatformUpdate_64bit_v11.0-Debian-2024-06-25 (Upgrades the Layer7 API 64bit Platform to the 11.0-Debian-2024-06-25 version. It requires a restart of the Layer7 API Gateway Appliance.) is INSTALLED, last modified on 2024-07-23T11:21:10-0700
[root@sm611841-gw11-1-0 ~]# /usr/bin/openssl version
OpenSSL 1.1.1w 11 Sep 2023