Gray Summer: 5G Core Based Threat Identification and Warning

S²MARTS Project No. 22-07


Solutions Due: 14 July 2022 at 12:00 PM ET

Q&A Release: 23 June 2022 at 12:00 PM ET

Project TALX: 2 June 2022 from 2:00 PM – 4:00 PM ET

Questions Due: 23 May 2022 at 12:00 PM ET

RFS Release: 13 May 2022 at 2:00 PM ET

Innovator NETWORX: 1 April 2022 at 1:00 PM ET

Coming Soon Notice: 21 March 2022 at 12:00 PM ET


The solutions deadline has been extended by an additional two weeks to 14 July 2022 at 12:00 PM ET. The RFS below includes this date change.

Gray Summer RFS: S2MARTS 2207 RFS Gray Summer Final Rev 3


The solutions deadline has been extended by more than two weeks to 30 June 2022 at 12:00 PM ET. The RFS below includes this date change.

Gray Summer RFS: S2MARTS 2207 RFS Gray Summer Final Rev 2


The Government has released the final RFS for the Gray Summer opportunity. Please find the RFS document and its accompanying attachments below.

Gray Summer RFS: S2MARTS 2207 RFS Grey Summer Final


Following the Project TALX held for Gray Summer, the Government has released a Q&A response document which provides answers to the questions posed during the event.

In addition, questions submitted through the standard process regarding the RFS have also been answered. Please find the 2 documents below.

Project TALX Q&A: Gray Summer PJTX Q&A 06-23-2022

RFS Q&A: Gray Summer RFS Q&A 06-23-2022


Thursday, June 2, 2022

2:00 PM – 4:00 PM ET

Event registration is closed

Event slides

Event recording

Hear directly from the Government team on their vision for both Gray Summer and Misty Night. During the first half of the event, the Government will provide insight on Gray Summer and host a Q&A session. The second half of the event will be dedicated to a Government deep dive into Misty Night, followed by another Q&A session. Join us for one event that will cover 2 opportunities.


Friday, April 1, 2022

1:00 PM – 3:00 PM ET

Event registration is closed

Join your fellow NSTXL innovators for this event, introduce your organization and its capabilities, and learn what others are doing in support of this opportunity. Please note, this event is for both the Gray Summer and Misty Night projects.

This virtual teaming program facilitates discussions about how participants can contribute to a team through member capabilities. Participants are encouraged to continue the conversation after the event by joining the opportunity teaming board on NSTXL Community.


The Department of the Navy (DoN) is seeking prototype support that seeks to identify, demonstrate, and assess capabilities that will provide solutions to operate through a wide range of 5G communication infrastructures that are under the cognizance of the Department of Defense (DoD).

The expanded technological capabilities of 5G introduce new means to compromise the security of Department of Defense (DoD) personnel that use connected devices. The DoD seeks tools that can be added at the Core Network to reduce the risk of exploitation throughout the 5G system, by either internal Mobile Network Operator (MNO) network assets, peer networks (e.g., 3rd party or visitor networks) and/or rogue User Equipment (UE) devices that are operating on the network. While this initiative is focused on 5G technology, it is important to recognize and acknowledge the proliferation of Non-Standalone (NSA) 5G system deployments for the foreseeable future. Since the NSA architecture utilizes a 4G/LTE Core (aka, Enhanced Packet Core or EPC) in conjunction with 4G and 5G Radio Access Network (RAN) types, it is imperative that the resulting solutions can also operate effectively on 4G/LTE systems.

The DoD network operators need tools that provide insight into users on the 5G network and methods for maintaining security across the network. As a part of the solution, DoD seeks to understand the threats and vulnerabilities that are introduced by 5G capabilities and methodologies to protect against those that would exploit them.

The Gray Summer Other Transaction Authority (OTA) prototype project is anticipated to be released and to be executed in three phases over the course of 30 months.