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Release Notes for Smart-UPS & 1-Phase Symmetra Firmware v3.4.0.8

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Release Notes for Smart-UPS & 1-Phase Symmetra Firmware v3.4.0.8

Lt. Commander SwathiNaidu Lt. Commander
‎2025-08-26 03:32 AM

 

Affected Revision Levels

 

Component  File Details
Smart-UPS Application

Windows:
snst_nmc3_su_3-4-0-8.exe
Linux & macOS: 
snst_nmc3_su_3-4-0-8.tar.gz

UPS Application for Smart-UPS, Smart-UPS RT, Smart-UPS VT, MGE Galaxy 3500.
Symmetra Application

Windows: 
snst_nmc3_sy_3-4-0-8.exe
Linux & macOS: 
snst_nmc3_sy_3-4-0-8.tar.gz  

UPS Application for 1-Phase Symmetra, Symmetra LX.

 

To upgrade to firmware version 3.0 or later, the only supported method is the Secure NMC System (SNS) Tool, which can be downloaded from www.se.com/secure-nmc or by searching for SFNMC3FMTSU. To access the firmware in the software, a valid Secure NMC subscription is required. For more information, see the SNS Tool User Guide.

 

NOTE: If you upgrade to firmware version 2.0 or later, you cannot downgrade to a firmware version lower than 2.0.

 

SwathiNaidu_0-1718792359613.pngIf you downgrade from firmware version 2.4+ to a firmware version lower than 2.4, this will cause the card to be formatted, erasing all security certificates, encryption keys, configuration settings, and the event and data logs.

 

New Features

 

New Feature

UPS Family
Smart-UPS 1-Phase Symmetra

Support added for viewing the ARP cache in the Command Line Interface (CLI).

♦ ♦

Support added for EtherNet/IP for selected UPS devices. For more information, refer to Knowledge Base article FAQ000275863. 

♦  

NMC now displays the UPS Installation date when supported by the UPS.

♦  

Added support for configuring outlet groups from the Command Line Interface.

♦  

Security Update

Support added for Multi-Factor Authentication (MFA). MFA adds an additional layer of security to user logins by requiring a one-time password (OTP) sent via email after successful username and password authentication. 

NOTE: Ensure the NMC user credentials used for the SNS Tool, EcoStruxure IT and Data Center Expert communications do not have email addresses configured. For more information, see Knowledge Base article FAQ000276382.

♦ ♦

 

Fixed Issues

 

Fixed Issue

UPS Family

Smart-UPS

1-Phase Symmetra

Unsuccessful e-mail tests are now displayed as expected in the Web UI. 

♦

♦

Styling for the “Password Change Required” web page now displays as expected in the latest update of Chrome.  

♦

 ♦

You can now cancel an initiated firewall test as expected in the Web UI. 

♦

 ♦

CIDR (Classless Inter-Domain Routing) notation is now allowed in SNMP NMS fields and firewall fields (when in subnet mode).  

 ♦

♦

The CIDR notation is now functional in the DNS field and NMP access is now allowed or blocked based on the ranges associated with the network.  

♦

 ♦

DNS lookups previously returned unusable IPv6 addresses in certain scenarios when both IPv4 and IPv6 were enabled (default settings). IPv4 is now prioritized if the NMC has an IPv4 address and only a link-local IPv6 address. 

♦

 ♦

The NMC now shows the correct RBC SKU string for battery replacement.

♦  

The NMC now properly supports USB flash drives for accessing configuration options via the UPS display.

♦  

 

Security Update

 

The following security vulnerability has been addressed in this release:

  • CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could cause the device to become unresponsive when malformed SNMP requests are received over the network. 
♦ ♦

The following security vulnerability has been addressed in this release:

  • CWE-476: NULL Pointer Dereference vulnerability exists that could cause the device to become temporarily inaccessible when receiving malformed IPv4 packets.
♦ ♦

The following security vulnerability has been addressed in this release:

  • CWE-613: Insufficient Session Expiration vulnerability exists that could cause a user to maintain access to an existing session when their password has been changed. 
♦ ♦

 

Known Issues

 

Known Issue
There is no known issue in this release.

 

Hash Signatures

 

Windows

Signatures snst_nmc3_su_3-4-0-8.exe
CRC32

45B34E48

CRC64

D073654FF833808B

SHA-256

35B2DE418E22D5241CB36A94C15FEBAF49E6AA46E90FA84BE685CBC4218EC70C

SHA-1

BAF4343761DB6D3DA916ECA5836A1F0131653F81

BLAKE2sp

E53287ED5744059A72F1BC59A911082E09B8548E2F4EA01F9A34FB796F362FEE

 

Signatures snst_nmc3_sy_3-4-0-8.exe
CRC32

F3BF4CCF

CRC64

907C7F8101C41264

SHA-256

4A84BB6DBE87313FBF9F751118EE0BE3036749713E87A61AFCEED92FCDCDB802

SHA-1

7D2451F2CC1B2E4FA5E34DB3EF342204268FADB4

BLAKE2sp

DBE7CDEF8B615F592E8E5E3EB531DC7ED166C5A78B8B01164C6016838BDE21EA

 

Linux

Signatures

snst_nmc3_su_3-4-0-8.tar.gz

CRC32

F4C123A8

CRC64

002F814120317B02

SHA-256

66CE945D8D13811760DF1E249C51B492415F62DDBD8A329E4FFF3F8F14AD14C8

SHA-1

242548A1D794AB86D8B31527FFB1C9025A2DF5A9

BLAKE2sp

4E9F592B433E6E467B964231D70E19829B6B19955DED67B185F33AFBE7926A62

 

Windows

Signatures snst_nmc3_sy_3-4-0-8.tar.gz
CRC32

316540EB

CRC64

AE3E7B930CA360D9

SHA-256

272EF5CE98C18C3AA9E8D822799C77B4194F36808F4FAF5F0075BF15A9092B00

SHA-1

88A7B68E9791FFFC8ABA11F1ADF90AE192B01293

BLAKE2sp

A903D65FE11A55F38F62D50A9C42742B42436407EF9B87A63037D958181F72E6

 

 

 

macOS

Signatures

snst_nmc3_su_3-4-0-8.tar.gz

CRC32

DC9E7DE1

CRC64

D24D77554F730E68

SHA-256

0B5562C2A883AA31EA105F90FB2E7AEBDFADA314418051ABC6F8DBA737F62111

SHA-1

6DCF6023F9A70FFF7710F91B425F5908C1D5D2A3

BLAKE2sp

93731344D22790B9080573089A7F8F41A3071BB5F3A30D09C028068A6A9E8D6B

 

Signatures

snst_nmc3_sy_3-4-0-8.tar.gz

CRC32

64EAFB15

CRC64

2B47491CD052BDCA

SHA-256

0634E006909A90B4EA1A6F2B7656324E63295AD2D3F9247D67C9E23ED548BBA4

SHA-1

DC266F489C01758913375596211CFEE2955206F0

BLAKE2sp

62CB4EAE53E5B6390E5EB56FF857536D7EC91D2AAE169437F0D044B06FC03BE9

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