www.zyxel.

com

VMG1312-T20B
EU Generic

Firmware Release Note

V5.30(ABSB.5)C0

Date: Aug. 20, 2021

Author: Ralph Chien
Reviewer:

THIS DOCUMENT CONTAINS PROPRIETARY TECHNICAL INFORMATION THAT IS THE

PROPERTY OF THE ZyXEL AND SHOULD NOT BE DISCLOSED TO OTHERS IN WHOLE OR IN
PART, REPRODUCED, COPIED, OR USED AS BASIS FOR DESIGN, MANUFACTURING OR
SALE OF APPARATUS WITHOUT WRITTEN PERMISSION OF ZyXEL.

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TABLE OF CONTENTS

SUPPORTED PLATFORMS: ............................................................................................................... 5

VERSIONS: ............................................................................................................................................ 5

NOTES: ................................................................................................................................................... 5

DEFAULT SETTINGS IN FIRMWARE .............................................................................................. 5

KNOWN ISSUES ................................................................................................................................... 6

MODIFICATIONS IN V5.30(ABSB.5)C0 ............................................................................................ 6

MODIFICATIONS IN V5.30(ABSB.5)B5 ............................................................................................ 6

MODIFICATIONS IN V5.30(ABSB.5)B4 ............................................................................................ 6

MODIFICATIONS IN V5.30(ABSB.5)B3 ............................................................................................ 6

MODIFICATIONS IN V5.30(ABSB.5)B2 ............................................................................................ 7

MODIFICATIONS IN V5.30(ABSB.5)B1 ............................................................................................ 7

MODIFICATIONS IN V5.30(ABSB.4)C0 ............................................................................................ 8

MODIFICATIONS IN V5.30(ABSB.4)B1 ............................................................................................ 8

MODIFICATIONS IN V5.30(ABSB.3)C0 ............................................................................................ 9

MODIFICATIONS IN V5.30(ABSB.3)B5 ............................................................................................ 9

MODIFICATIONS IN V5.30(ABSB.3)B4 ............................................................................................ 9

MODIFICATIONS IN V5.30(ABSB.3)B3 ............................................................................................ 9

MODIFICATIONS IN V5.30(ABSB.3)B2 ............................................................................................ 9

MODIFICATIONS IN V5.30(ABSB.3)B1 .......................................................................................... 10

MODIFICATIONS IN V5.30(ABSB.2)C0 .......................................................................................... 11

MODIFICATIONS IN V5.30(ABSB.2)B3 .......................................................................................... 11

MODIFICATIONS IN V5.30(ABSB.2)B2 .......................................................................................... 11

MODIFICATIONS IN V5.30(ABSB.2)B1 .......................................................................................... 11

MODIFICATIONS IN V5.30(ABSB.0)C0 .......................................................................................... 13

MODIFICATIONS IN V5.30(ABSB.0)B3 .......................................................................................... 13

MODIFICATIONS IN V5.30(ABSB.0)B2 .......................................................................................... 13

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MODIFICATIONS IN V5.30(ABSB.0)B1 .......................................................................................... 13

MODIFICATIONS IN V5.30(ABSB.0)A1 .......................................................................................... 14

PUBLIC DOMAIN SOFTWARE ANNOUNCEMENTS .................................................................. 15

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Revision History
Date Release Author Description
2019/04/19 1.0 Ralph Chien V5.30(ABSB.0)a1
2019/06/05 1.1 Bonnie Zhao V5.30(ABSB.0)b1
2019/10/22 1.2 Chi-Hao,Lo V5.30(ABSB.0)b2
2019/10/28 1.3 Chi-Hao,Lo V5.30(ABSB.0)b3
2019/10/28 1.4 Chi-Hao,Lo V5.30(ABSB.0)C0
2019/11/21 1.5 Wilbur Lu V5.30(ABSB.2)b1
2019/12/20 1.6 Wilbur Lu V5.30(ABSB.2)b2
2020/1/15 1.7 Wilbur Lu V5.30(ABSB.2)b3
2020/2/10 1.8 Wilbur Lu V5.30(ABSB.2)C0
2020/6/5 1.9 Ralph Chien V5.30(ABSB.3)b1
2020/8/28 2.0 Ralph Chien V5.30(ABSB.3)b2
2020/10/7 2.1 Ralph Chien V5.30(ABSB.3)b3
2020/10/28 2.2 Ralph Chien V5.30(ABSB.3)b4
2020/11/26 2.3 Ralph Chien V5.30(ABSB.3)b5
2020/12/18 2.4 Wilbur Lu V5.30(ABSB.3)C0
2021/01/26 2.5 Ralph Chien V5.30(ABSB.4)b1
2021/01/26 2.6 Ralph Chien V5.30(ABSB.4)C0
2021/02/26 2.7 Ralph Chien V5.30(ABSB.5)b1
2021/04/23 2.8 Ralph Chien V5.30(ABSB.5)b2
2021/06/11 2.9 Ralph Chien V5.30(ABSB.5)b3
2021/08/02 3.0 Ralph Chien V5.30(ABSB.5)b4
2021/08/09 3.1 Ralph Chien V5.30(ABSB.5)b5
2021/08/20 3.2 Ralph Chien V5.30(ABSB.5)C0

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Zyxel VMG1312-T20B EU Generic

V5.30(ABSB.5)C0
Release Note
Date: Aug. 20, 2021

Supported Platforms:
Zyxel VMG1312-T20B

Versions:
Bootbase Version: V1.45 | 08/02/2021 17:45:45
Firmware version : V5.30(ABSB.5)C0
Kernel version: 2.6.36
DSL driver version: V5.10.6.0_PQA_20200413
2.4G WLAN code version: 4.0.1.0rev2.P1
3G dongle WWAN package version: 1.22

Notes:

Default Settings in Firmware

- Refer to the *.rom in the fw release package.
- Please use the website http://jsoneditoronline.org/ to open the *. rom.

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Known issues

Modifications in V5.30(ABSB.5)C0
Base on V5.30(ABSB.5)b5 to release V5.30(ABSB.5)C0 FCS

Modifications in V5.30(ABSB.5)b5
[BUG FIX]
1. [WAN] VDSL & ADSL train fail.

Modifications in V5.30(ABSB.5)b4
[BUG FIX]
1. [LED] Disconnect the DSL cable, the internet LED should be light off.
2. [WAN] When VDSL Internet data transmitting, internet LED show Solid
Green not meets the PS/ES define.
3. [WAN] Disable Default Gateway, internet LED show Solid Green not
meets the PS define.
4. [LED] WWAN or ETH Internet access and does not connect to any
Lan terminal, the Internet LED is off.
5. [WLAN] Enable Wi-Fi key reminder, LAN PC open a http website but
CPE will not redirect to landing page
6. [WLAN] Enable Wi-Fi key reminder, LAN PC open a https website but
CPE will not redirect to landing page
7. [GUI] If WPS is Enabled, UPnP should automatically be turned on.
8. [WAN] The Advanced page note should not show ADSL over PTM
wording since Econet model doesn't support screen ADSL over PTM.
9. [Security] Wireless SSID command injection

Modifications in V5.30(ABSB.5)b3
[FEATURE ENHANCEMENT]
1. [GUI] Multi-language GUI for OPAL generic GW + Extender
[BUG FIX]
1. [ACTS] Change admin account user name by ACS server and then
reboot, the CPE zhttpd daemon will restart continuously
2. [LAN] DUT should not support Ethernet UNI function.

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3. [GUI] Disable WLAN function, the WPS switch button doeasn't gray
out.
4. [Security] LAN traffic does not pass through the L2TP IP address. And
after L2TP VPN changes the LAN interface, L2TP cannot connect
successfully.

Modifications in V5.30(ABSB.5)b2
[BUG FIX]
1. [eITS #201101212] [WAN] MTU size in bridge mode resets to default
1500 after power reset.
2. [GUI] Card page -> LAN page cannot display correctly by IE
browser.
3. [Security] L2TP work fail.
4. [Security] L2TP VPN page should not be visible for generic FW by
default.
5. [Diagnostic] The diagnostic GUI should not pop-up warning
message even user fill in correct FQDN format in TCP/IP address
6. [VLAN Group] The VLAN Group page note should not show any
GRE wording since VMG1312-T20B model doesn't support GRE
function
7. [USB] Can't add share folder for file sharing
8. [WAN] The CPE GUI should not show programming syntax wording
when user click Disconnect button via ADSL PPPoA mode
9. [MAC Filter] Use Drop-down menu to add MAC Filter rule, MAC Filter
function cannot work.
10. [GUI] The Broadband table information had been shift.
11. [GUI] Use Wifi Card page to enable random WiFi password, DUT
cannot save.

Modifications in V5.30(ABSB.5)b1
[FEATURE ENHANCEMENT]
1. [eITS #200102401] Change default date be the creation or the FW
release date instead of 1-1-1970.
2. [eITS #200400636] Modify the web GUI display from “Annex M” to
“Annex M/Annex J”.

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3. [eITS #200400612] Support download & import CA from TR69 by

using the FileType "6 ZYXEL SSL CA File".
4. [eITS #200602984] Support disable/enable WiFi HW button function
via TR-098 and TR-181.
5. [eITS #200602846] Support log for the behavior when WiFi HW
button is triggered and WiFi is enabled/disabled after the button is
triggered.
6. [eITS #200700034] Support to use MAC address or serial number as
ACS password.
7. [eITS #201001163] Support Lifemote agent v1.3.
8. On MAC filter page, show the devices(drop-down list) which are
connected to modem.
9. [eITS #201201184] VLAN0 support for customer's network.
10. Change time format 00:00-23:59 in Parental control page.
11. [OPAL Generic] Key Feature - L2TP (default disabled)

[BUG FIX]
1. [Vulnerability] UPnP protocol can be abused to perform DDoS
and/or data exfiltration via SUBSCRIBE capability.
2. [eITS #200800711][Vulnerability] CVE-2019-11358 vulnerability -
update jQuery to "3.5.1".
3. [eITS #201101346]Firmware-download url does not follow routing
path
4. [eITS #210100668][Vulnerability] Vulnerabilities in Multiple Zyxel
Equipment from Sec consult => issue 1,2,4,5,7,8,9,10
5. [eITS #210100667][Vulnerability] Dnsmasq multiple vulnerabilities
(DNSPooq)
6. [Vulnerability][CVE-2020-1971] [Openssl]Correctly compare
EdiPartyName in GENERAL_NAME_cmp()

Modifications in V5.30(ABSB.4)C0
Base on V5.30(ABSB.4)b1 to release V5.30(ABSB.4)C0 FCS

Modifications in V5.30(ABSB.4)b1
[BUG FIX]

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1. [#210100697][System] Supervisor password does not work from

WAN side after upgrade

Modifications in V5.30(ABSB.3)C0
Base on V5.30(ABSB.3)b5 to release V5.30(ABSB.3)C0 FCS

Modifications in V5.30(ABSB.3)b5
[FEATURE ENHANCEMENT]
1. [eits #200102401] Set default date as system uname time.
[BUG FIX]
1. [Vulnerability] Unauthenticated Denial-of-Service effectively
disabling the device’s web-interface.
2. [Vulnerability] Arbitrary remote code execution (RCE) on the
device through an HTTP request.
3. [eits #201100482 ][LAN as WAN] disconnecting of any LAN cable
resets the uplink connection.
4. [GUI] Vulnerability issue via Export_Log.

Modifications in V5.30(ABSB.3)b4
[BUG FIX]
1. [GUI] Use Wifi Card page to Set Guest WiFi password, DUT will show
"Invalid Pre-Shared Key".
2. [WAN]VDSL can train success but cannot get an IP address.
3. [NAT] CPE hang and show "Invalid memory segment access" when
add an address mapping rule with interface "Default" then reboot
CPE.

Modifications in V5.30(ABSB.3)b3
[BUG FIX]
1. [Security]WOL command injection
2. buffer overflow when upgrade FW

Modifications in V5.30(ABSB.3)b2
[FEATURE ENHANCEMENT]
1. [#200700120] VMG1312-T20B request to support Ethernet WAN

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[BUG FIX]
1. [#190900425]Device.X_ZYXEL_LoginCfg.LogGp.i.Account.i.Remote
AccessPrivilege doesn't work
2. [#200300288]Laptop That Connect to Modem can not access
Internet.

Modifications in V5.30(ABSB.3)b1
[FEATURE ENHANCEMENT]
1. [#191100506] Option 61 Identifier unique for each device
2. [#200100461] Updated JSON file with modifications for Czech
language
3. [#191200210] OPAL Support
Device.ManagementServer.InformParameter.{i}.
4. [#191200262] OPAL Support user_startup_parameters.sh
5. [#200300859] VMG8825, TR69 watchdog log
6. OPAL Regular Q1Y20 b1_Key feature
7. OPAL Release_Remove WLAN schedule
8. Support LAN4 as ETHWAN on Econet platform for VMG1312-T20B
[BUG FIX]
1. [#190900425]
Device.X_ZYXEL_LoginCfg.LogGp.i.Account.i.RemoteAccessPrivileg
e doesn't work
2. [#190900457] The bridge client cannot run IGMP server if If
Con-current WAN use PPPoE + bridge.
3. [#200100462] Other modifications for Czech language which are
not available in JSON file
4. [#200100533] WAN interface with VLAN ID and default Gateway
5. [#191200311] Config DHCP client option42 on non-default
interfaces
6. [#200103035] EMG3525-T50B_Incorrect model number
7. [#200201333] Parental control in Turkish language display incorrect
8. [#200201334] The Default of parental control in card page and
advance page are not consistent
9. [#200200810] fixed/hardcoded SSID to be broadcasted out before
the wifi driver boot up

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10. [#200300675] {Security Vulnerability] - Kr00k with BRCM/Cypress wifi

chipset - Zyxel Uk
11. [#200400142] DSL Advanced configuration apply unsuccessful
12. [#200401166] Encapsulation Type - GUI option ADSL over ATM, VDSL
over PTM
13. [#200401236] VMG8825, PeriodicInformTime via CLI

Modifications in V5.30(ABSB.2)C0
Base on V5.30(ABSB.2)b3 to release V5.30(ABSB.2)C0 FCS

Modifications in V5.30(ABSB.2)b3
[FEATURE ENHANCEMENT]
1. [#119655][#191200326] Unique ACS Username and Password.

Modifications in V5.30(ABSB.2)b2
[FEATURE ENHANCEMENT]
9. [#106952][#190500025][GUI]Separate LAN/WLAN as different
column in remote management page.
10. [#119655][#191200326] Unique ACS Username and Password
[BUG FIX]
14. [#109201][WAN] Internet LED cannot be flashing when Lan PC surf
internet via 3G WAN.
15. [#119131][GUI] Use Wifi Card page to change wifi setting, DUT will
show Setting not successful. Please try again.

Modifications in V5.30(ABSB.2)b1
[FEATURE ENHANCEMENT]
1. [eITS #190400092] Support IGMP log on system log
2. [eITS #190400662] Support DHCPv6 option64 for IPv6 DS-Lite
3. [eITS #190500612] Enable DHCP option 43 by default
4. [eITS #190500747] Support Portuguese GUI.
5. [eITS #190500597] Support Turkey GUI.
6. [eITS #190700652] Support Russian GUI
7. Support Czech GUI

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8. [#114453][#190900750] Listing processes on console might output

pppd auth params
9. [#115144][#190901023] FRQ VMG8825-B50B QoS / static route ro
interface "drop"
10. [#106951][#190500597] OPAL Generic Feature Request for GMT time
zone of Turkey
11. [#107935][#190600082] GUI page will try to connect to a
unnecessary JavaScript/CSS
12. [#110767][#190700379] Multiple TCP-based remote denial of service
vulnerabilities
13. [#110554][#190700496] USB File Sharing case-sensitive issue
14. [#111461][#190800137] Pen Test Results - ZyShell Privilege Escalation
15. [#111526][#190800211] TR069 watchdog relaunch
16. [#113874][#190800234] Pen test results - Vulnerable software
packages - Risk [Various - See CVE score]
17. [#112114][#190800585]
EMG3525-T50B_TR-069_OperatingChannelBandwidth Incorrect
Value
18. [#112115][#190800588] EMG3525-T50B_TR-069_Total BytesSent and
Total BytesReceived values remains on 0
19. [#113056][#190801239] EMG3525 QR-code for SSID not correct in
GUI
20. [#114120][#190900534] EMG3525 Key-based authentication doesn't
work.
[BUG FIX]
1. [eITS #190501104] Some TR069 ATM parameters will be returned on
eth/vdal/wwan interfaces with GPN.
2. [eITS #190600597] Upload certificate error after changed gateway IP
address
3. [eITS #190600727] SSID not visible then reappears but will no longer
allow client device to authenticate
4. [eITS #190700674] DHCP with one address ip(Configure LAN subnet
mask to 255.255.255.252) in the pool don't work
5. [#116658][#190500035] VMG8825 zcmd reach the maximum
number of instant, will loop endless.

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6. [#113907][#190900326] EMG3525 IGMPv3 used even if IGMPv2 is

configured
7. [#115339][#191000125] EMG3525 Include GenXML utility in firmware
8. [#115340][#191000127] EMG3525 Multiple Ethernet WAN-interfaces
without VLAN-tag
9. [#115808][#191000575] XML GPV
InternetGatewayDevice.LANDevice.1.LANHostConfigManagement.I
PInterface.1.X_ZYXEL_DHCPv6Server.IANAPrefixes
10. [#116249][#191000920] VMG1312-T20B higher attenuation issue
11. [#116662][#191001109] VMG3625-T20A can't import trusted CA
12. [#117174][#191100119] Language Settings: modify languages
option.

Modifications in V5.30(ABSB.0)C0
Based on V5.30(ABSB.0)b3 to release V5.30(ABSB.0)C0 (E0
configuration)

Modifications in V5.30(ABSB.0)b3
[FEATURE ENHACEMENT]
1. SingleSKU_Internal_antenna_EU_20190510 for
VMG1312-T20B_EU_Generic.
[BUG FIX]
1. [#116441] The SSID is different from default setting
2. [#116500] The MAC Address Quantity is different from PS

Modifications in V5.30(ABSB.0)b2
[FEATURE ENHACEMENT]
1. SingleSKU_Internal_antenna_EU_20190510 for
VMG1312-T20B_EU_Generic.
[BUG FIX]

Modifications in V5.30(ABSB.0)b1
[FEATURE ENHACEMENT]
1. Update power table
[BUG FIX]
1. [WIFI] When push WPS button, WPS LED will not turn on

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Modifications in V5.30(ABSB.0)a1
First firmware release
[FEATURE ENHACEMENT]
[BUG FIX]

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Public Domain Software Announcements

Open
Source Used
Licensing Modified /
in product Version From (Source)
Term Used
(3rd party
software)
Bridge-Utils 1.5 http://bridge.sourceforge.net GPLv2 Used
BusyBox 1.20.1 http://www.busybox.net/ GPLv2 Modified
ebtables 2.0.10-4 http://ebtables.sourceforge.net GPLv2 Modified
pure-ftpd 1.0.30 http://pureftpd.org BSD Modified
http://repository.timesys.com/buildsources/i/ipr
iproute2 2-2.6.33 oute2/ GPLv2 Modified
iptables 1.4.21 http://www.netfilter.org GPLv2 Modified
udhcp 0.9.8 http://udhcp.busybox.net/ GPLv2 Modified
zebra 0.93a http://www.zebra.org/ GPLv2 Used
GPLv2/BS
ppp 2.4.3 http://www.roaringpenguin.com/pppoe D Modified
dropbear 2018.76 http://matt.ucc.asn.au/dropbear/dropbear.html MIT Modified
Openssl
openssl 1.0.2n http://www.openssl.org (BSD-style) Modified
radvd 1.8 http://www.litech.org/radvd/ BSD Used
ntfs-3g 2013.1.13 http://ntfs-3g.org GPLv2 Used
WIDE-DHCPv
6 20080615 http://wide-dhcpv6.sourceforge.net/ BSD Modified
usb-modeswit
ch 2.1.0 http://www.draisberghof.de/usb_modeswitch/ GPLv2 Used
libusb 1.0.9 http://www.libusb.org/ LGPL 2.1 Used
samba 3.6.25 http://www.samba.org/samba/ GPLv2 Modified
http://www.thekelleys.org.uk/dnsmasq/doc.htm
dnsmasq 2.67 l GPLv2 Modified
ez-ipupdate 3.0.11b8 http://ez-ipupdate.com/ GPLv2 Used
libpcap 1.1.1 www.tcpdump.org BSD Used

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expat 1.95.8 http://expat.sourceforge.net/ MIT Used

tcpdump 4.2.1 http://www.tcpdump.org/ BSD Used
http://git.balabit.hu/?p=bazsi/eventlog-1.0.git;a
eventlog 0.2.10 =summary BSD Used
glib 2.37.7 http://www.gtk.org/ GPLv2 Used
gettext 0.16 http://www.gnu.org/software/gettext/ GPLv2 Used
LGPL
(GNU
LIBRARY
GENERAL
PUBLIC
LICENSE
libiconv 1.11.1 http://www.gnu.org/software/libiconv/ V2) Modified
http://pkgs.fedoraproject.org/repo/pkgs/libffi/libf
libffi 3.0.11 fi-3.0.11.tar.gz/ MIT Used
20080712- http://pkgs.fedoraproject.org/repo/pkgs/libedit/li
libedit 2.11 bedit-20080712-2.11.tar.gz/ GPLv2 Modified
http://www.netfilter.org/projects/libnetfilter_que
libnfnetlink 1.0.1 ue/ GPLv2 Used
libusb 1.0.9 http://libusb.wiki.sourceforge.net/ LGPL 2.1 Used
http://www.freedesktop.org/wiki/Software/libqm
libqmi 1.8.0 i GPLv3 Used
http://cnswww.cns.cwru.edu/php/chet/readline/
readline 6.2 rltop.html GPLv2 Used
popt 1.16 http://rpm5.org/files/popt/ MIT Modified
libnetfilter_qu http://www.netfilter.org/projects/libnetfilter_que
eue 1.0.2 ue/ GPLv2 Used
https://launchpad.net/ubuntu/hardy/i386/logrot
logrotate 3.7.1 ate/ GPLv2 Modified
ntpclient 2007_365 http://doolittle.icarus.com/ntpclient/ GPLv2 Modified
net-snmp 5.7.2 http://www.net-snmp.org/ GPL/BSD Modified
http://www.balabit.com/network-security/syslog GPLv2/LG
syslog-ng 2.0.10 -ng/ PLv2.1 Used
libtool 2.4 http://www.gnu.org/software/libtool/ GPLv2 Used

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ncurses 5.7 http://ftp.gnu.org/pub/gnu/ncurses/ MIT Modified

json-c 0.13.1 https://github.com/json-c/json-c/downloads MIT Modified
clinkc 2.4 http://sourceforge.net/projects/clinkc/ BSD Modified
Piblic
Domain
sqlite 3.6.23.1 http://www.sqlite.org/ License Used

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