What's New ZLD5.37 Patch2

zyxel_Lin · February 19

Zyxel is committed to continuously updating your devices for important maintenance. This latest release enhances all functions of security appliances including:

Feature Enhancements and Consolidated Bug fixes

Table: Resolved issues

Upgrade your devices to ZLD5.37 Patch2 for enhanced protection against the CVE references listed, as ZLD5.37 Patch2 is no longer vulnerable to them.
- CVE-2023-6397
- CVE-2023-6398
- CVE-2023-6399
- CVE-2023-676

Release Date: February 20th, 2024
Supported Models: ZyWALL ATP Series/ZyWALL USG FLEX Series/ZyWALL VPN series/
USG FLEX 50 (USG20-VPN)/USG FLEX 50AX/USG20W-VPN

Mati · February 20

What about USG series, like USG1100 & USG2200?? Are these devices safe against the above vulnerabilities?

They have no successors in the company's portfolio.

FRELS · March 1

USG FLEX 500 is crashing now when running following command: interface dial wan1_ppp

we used to have this as a schedule-run .zysh script daily

could you please check and tell us how to handle this now?

Firmware:

USG FLEX 500	V5.37(ABUJ.2)

ez_ · March 5

Hi,

have someone problem with IPSec IKEv2 VPN connection in Windows 10 (Windows 11 no problem) ?

I have one customer have problem after the firmware update (USG Flex 200).

No errors in logs, after 30 seconds of negotiation between the PC and the firewall the connection is disconnect and we have this message.

Capture d’écran 2024-03-05 à 12.10.46.png

L2TP VPN connection in the same PC is working.

TriLanSupport · March 12

Have updated to this release and we look to be seeing a possible memory leak or high memory usage that results in SSL VPN connections randomly dropping. Only resolution is to then reboot firewall and usage returns to approx. 50%

Has anyone else experienced issues with high memory usage and/or leaks?

What's New ZLD5.37 Patch2

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