3GPP 33-series – Security aspects

The technical specifications (TS) are displayed in blue, while the reports (TR) are shown in green. TS that have been discontinued in earlier releases are indicated with a light blue color. TR in the '9' range that have been stopped are highlighted in light green. TS or TR with a yellow background indicate those updated at the latest Q3-2025 Plenary Meetings, excepted if it is an automatic upgrade to Rel-19. The new ones are displayed with a single red dotted overline.

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click here to see the new 33-series documents introduced at each 3GPP quarterly Plenary Meeting

33.1… 33.2… 33.3… 33.4… 33.5… 33.7… 33.8… 33.9…

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78 p.	TS 33.102	REL 3 → 19	3G security – Security architecture
25 p.	TS 33.103	REL 3 → 4	3G security – Integration Guidelines
26 p.	TS 33.105	REL 3 → 19	3G security – Cryptographic Algorithm Requirements

Lawful Interception – Legacy Systems, up to EPS
27 p.	TS 33.106	REL 3 → 19	Requirements
406 p.	TS 33.107	REL 3 → 19	Architecture and Functions
294 p.	TS 33.108	REL 5 → 19	Handover interface

29 p.	TS 33.110	REL 7 → 19	Key Establishment between a UICC and a Terminal
17 p.	TS 33.116	REL 14 → 19	Security Assurance Specification (SCAS) for the MME Network Product Class
109 p.	TS 33.117	REL 14 → 19	Catalogue of General Security Assurance Requirements
11 p.	TS 33.120	REL 3 → 4	Security Objectives and Principles
41 p.	TS 33.122	REL 15 → 19	Security Aspects of Common API Framework (CAPIF) for 3GPP Northbound APIs

Lawful Interception – 5GS/EPS
20 p.	TS 33.126	REL 15 → 19	Requirements
200 p.	TS 33.127	REL 15 → 19	Architecture and Functions
476 p.	TS 33.128	REL 15 → 19	Handover Interface

20 p.	TS 33.141	REL 6 → 19	Presence Service Security
56 p.	TS 33.163	REL 15 → 19	Battery Efficient Security for Very Low Throughput MTC Devices
94 p.	TS 33.179	REL 13	Security of Mission Critical Push To Talk (MCPTT) over LTE
205 p.	TS 33.180	REL 14 → 19	Security of the Mission Critical Service
13 p.	TS 33.185	REL 14 → 19	Security aspect for LTE Support of V2X services
16 p.	TS 33.187	REL 12 → 19	Security aspects of MTC and other Mobile Data Applications Communications Enhancements


24 p.	TS 33.200	REL 4 → 6	NDS – MAP Application Layer Security
148 p.	TS 33.203	REL 5 → 19	Access Security for IP-based Services
26 p.	TS 33.204	REL 7 → 19	NDS – TCAP User Security
28 p.	TS 33.210	REL 5 → 19	NDS – IP Network Layer Security
24 p.	TS 33.216	REL 15 → 19	Security Assurance Specification (SCAS) for eNB Network Product Class
113 p.	TS 33.220	REL 6 → 19	GAA – GBA: Generic Bootstrapping Architecture
27 p.	TS 33.221	REL 6 → 19	GAA – Support for Subscriber Certificates
39 p.	TS 33.222	REL 6 → 19	GAA – Access to NAFs using HTTPS
33 p.	TS 33.223	REL 8 → 19	GAA – GBA Push function
22 p.	TS 33.224	REL 9 → 19	GAA – Generic Push layer
28 p.	TS 33.226	REL 17 → 19	Security assurance for IP Multimedia Subsystem (IMS)
12 p.	TS 33.234	REL 6 → 19	I-WLAN Security
75 p.	TS 33.246	REL 7 → 19	MBMS Security
17 p.	TS 33.250	REL 14 → 19	Security Assurance Specification for PGW Network Product Class
29 p.	TS 33.256	REL 17 → 19	Security aspects of Uncrewed Aerial Systems (UAS)
30 p.	TS 33.259	REL 7 → 19	Key Establishment between a UICC Hosting Device and a Remote Device


94 p.	TS 33.303	REL 12 → 19	Proximity-based Services (ProSe) – Security aspects
80 p.	TS 33.310	REL 6 → 19	NDS – Authentication Framework
43 p.	TS 33.320	REL 9 → 19	Security of HNB / HeNB
13 p.	TS 33.326	REL 17 → 19	SCAS for the NSSAAF network product class
85 p.	TS 33.328	REL 9 → 19	IMS Media Plane Security
22 p.	TS 33.369	REL 19	Security aspects of Ambient IoT services in 5G


177 p.	TS 33.401	REL 8 → 19	SAE – Security Architecture
75 p.	TS 33.402	REL 8 → 19	SAE – Security aspects of non-3GPP Accesses
43 p.	TS 33.434	REL 16 → 19	Security aspects of Service Enabler Architecture Layer (SEAL) for verticals


356 p.	TS 33.501	REL 15 → 19	Security Architecture and Procedures for 5G System
77 p.	TS 33.503	REL 17 → 19	Security Aspects of ProSe in the 5G System
27 p.	TS 33.511	REL 16 → 19	5G SCAS for the Next Generation Node B (gNodeB) Network Product Class
28 p.	TS 33.512	REL 16 → 19	5G SCAS for the Access and Mobility management Function (AMF)
17 p.	TS 33.513	REL 16 → 19	5G SCAS for the User Plane Function (UPF)
17 p.	TS 33.514	REL 16 → 19	5G SCAS for the Unified Data Management (UDM) Network Product Class
12 p.	TS 33.515	REL 16 → 19	5G SCAS for the Session Management Function (SMF)
12 p.	TS 33.516	REL 16 → 19	5G SCAS for the Authentication Server Function (AUSF)
21 p.	TS 33.517	REL 16 → 19	5G SCAS for the Security Edge Protection Proxy (SEPP) Network Product Class
12 p.	TS 33.518	REL 16 → 19	5G SCAS for the Network Repository Function (NRF) Network Product Class
14 p.	TS 33.519	REL 16 → 19	5G SCAS for the Network Exposure Function (NEF) Network Product Class
11 p.	TS 33.520	REL 18 → 19	5G SCAS for the Non-3GPP InterWorking Function (N3IWF)
12 p.	TS 33.521	REL 17 → 19	5G SCAS for the Network Data Analytics Function (NWDAF)
13 p.	TS 33.522	REL 17 → 19	5G SCAS for the Service Communication Proxy (SCP)
25 p.	TS 33.523	REL 18 → 19	5G SCAS for the Split gNB Product Classes
17 p.	TS 33.526	REL 18 → 19	5G SCAS for the Management Function (MnF)
18 p.	TS 33.527	REL 18 → 19	5G SCAS for the 3GPP Virtualized Network products
10 p.	TS 33.528	REL 18 → 19	5G SCAS for the Policy Control Function (PCF)
17 p.	TS 33.529	REL 19	5G SCAS for Short Message Service Function (SMSF)
9 p.	TS 33.530	REL 19	5G SCAS for the Unified Data Repository (UDR)
28 p.	TS 33.533	REL 18 → 19	Security aspects of Ranging based Services and Sidelink Positioning
42 p.	TS 33.535	REL 16 → 19	Authentication and Key Management for Applications (AKMA) based on 3GPP credentials in the 5GS
27 p.	TS 33.536	REL 16 → 19	Security aspects of 3GPP support for advanced Vehicle-to-Everything (V2X) services
12 p.	TS 33.537	REL 18 → 19	5G SCAS for the Authentication and Key Management for Applications (AKMA) Anchor Function (AAnF)
15 p.	TS 33.545	REL 19	Security aspects of NR Femto
21 p.	TS 33.558	REL 17 → 19	Security aspects of enhancement of support for enabling edge applications


98 p.	TR 33.700-22	REL 19	Study on Security aspects of Common API Framework (CAPIF) Phase 3
9 p.	TR 33.700-28	REL 18	Study on Security aspects of Satellite access
116 p.	TR 33.700-29	REL 19	Study on Security aspects of 5G Satellite access in the 5G architecture Phase 3
69 p.	TR 33.700-32	REL 19	Study on Security aspects of User Identities and Authentication
12 p.	TR 33.700-41	REL 19	Study on Cryptographic algorithm transition to 256 bits
31 p.	TR 33.701	REL 19	Study on mitigations against bidding down Attacks
65 p.	TR 33.702	REL 19	Security for Mobility over non-3GPP access to avoid full Primary Authentication
00 p.	TR 33.713	REL 19	Study on security aspects of Ambient Internet of Things (AIoT) services in 5G
33 p.	TR 33.721	REL 19	Study on Security aspects of 5G Mobile Metaverse services
48 p.	TR 33.737	REL 18	Study on Authentication and Key Management for Applications (AKMA) – Phase 2
68 p.	TR 33.738	REL 18	Study on Security aspects of Enablers for Network Automation for the 5G System – Phase 3
66 p.	TR 33.739	REL 18	Study on Security enhancement of support for Edge Computing – Phase 2
117 p.	TR 33.740	REL 18	Study on Security aspects of Proximity Based Services (ProSe) in 5GS – Phase 2
38 p.	TR 33.741	REL 18	Study on Home Network triggered Primary Authentication
50 p.	TR 33.743	REL 19	Study on Security aspects of enhancement for Proximity-based Services (ProSe) in the 5GS Phase 3
35 p.	TR 33.745	REL 19	Study on Security aspects of 5G Next Radio (NR) Femto
28 p.	TR 33.749	REL 19	Study on Security aspects of enhancement of support for Edge Computing in the 5GC Phase 3
29 p.	TR 33.754	REL 19	Study on Security aspects for Multi-Access for DualSteer devices and ATSSS Phase 4
68 p.	TR 33.757	REL 19	Study on Security for a PLMN hosting a Non-Public Network (NPN)
18 p.	TR 33.759	REL 19	Study on Security enhancements of Uncrewed Aerial Systems (UAS) Phase 3
13 p.	TR 33.766	REL 19	Study on Security aspects of Energy savings in 5G
36 p.	TR 33.776	REL 19	Study of ACME for the SBA
48 p.	TR 33.784	REL 19	Study on Security aspects of Core Network enhanced support for AI/ML
61 p.	TR 33.790	REL 19	Study on the Security support for the next generation Real Time Communication services Phase 2
55 p.	TR 33.794	REL 19	Study on Enablers for Zero Trust Security


10 p.	TR 33.803	REL 7	Coexistence between TISPAN and 3GPP Authentication Schemes
47 p.	TR 33.804	REL 11 → 12	Single Sign On (SSO) Application Security for Common IMS based on SIP Digest
106 p.	TR 33.805	REL 12	Study on Security Assurance Methodology for 3GPP Network Products
33 p.	TR 33.807	REL 16	Study on the Security of the Wireless and Wireline Convergence for the 5G System Architecture
131 p.	TR 33.809	REL 18	Study on 5G Security enhancements against False Base Stations (FBS)
27 p.	TR 33.810	REL 6	Feasibility Study to support NDS/IP Evolution
19 p.	TR 33.811	REL 15	Study on Security aspects of 5G Network Slicing Management
87 p.	TR 33.812	REL 9	Feasibility Study on Remote Management of USIM Application on M2M Equipment
36 p.	TR 33.813	REL 16	Study on Security aspects of Network Slicing enhancement
19 p.	TR 33.814	REL 16	Study on the Security of the enhancement to the 5GC Location Services (LCS)
17 p.	TR 33.815	REL 16	Study on Security aspects of PARLOS by Unauthenticated UEs
94 p.	TR 33.816	REL 10	Feasibility Study on LTE Relay Node Security
39 p.	TR 33.817	REL 6	Feasibility Study on (U)SIM Security Reuse by Peripheral Devices on Local Interfaces
59 p.	TR 33.818	REL 17	SECAM and SCAS for 3GPP Virtualized Network Products
46 p.	TR 33.819	REL 16	Study on Security enhancements of 5GS for Vertical and Local Area Network (LAN) Services
99 p.	TR 33.820	REL 8	Security of H(e)NB
141 p.	TR 33.821	REL 8 → 9	Rationale and Track of Security Decisions in LTE RAN / 3GPP SAE
30 p.	TR 33.822	REL 8	Security aspects for inter-Access Mobility between non 3GPP and 3GPP Access Network
18 p.	TR 33.823	REL 12	Security for Usage of GBA with a UE Browser
22 p.	TR 33.824	REL 17	Study on Security for Next Radio (NR) Integrated Access and Backhaul (IAB)
29 p.	TR 33.825	REL 16	Study on the Security of Ultra-Reliable Low-Latency Communication (URLLC) for 5GS
53 p.	TR 33.827	REL 14	Study on providing for Lawful Interception (LI) in the S8 Home Routeing (S8HR) Architecture for VoLTE
81 p.	TR 33.828	REL 9 → 11	IMS Media Plane Security
58 p.	TR 33.829	REL 12	IMS Media Plane Security Services
25 p.	TR 33.831	REL 12	Study on Security on Spoofed Call Detection and Prevention
227 p.	TR 33.833	REL 13	Study on Security issues to support Proximity Services (ProSe)
35 p.	TR 33.834	REL 16	Study on Long Term Key Update Procedures (LTKUP)
83 p.	TR 33.835	REL 16	Study on Authentication and Key Management for Applications based on 3GPP Credential in 5G
51 p.	TR 33.836	REL 16	Study on Security aspects of 3GPP support for advanced Vehicle-to-Everything (V2X)
21 p.	TR 33.838	REL 11	Study on Protection against Unsolicited Communication for IMS (PUCI)
78 p.	TR 33.839	REL 17	Study on Security aspects of enhancement of support for Edge Computing in 5GC
25 p.	TR 33.841	REL 16	Study on the support of 256-bit Algorithms for 5G
35 p.	TR 33.843	REL 15	Study on Security aspect of Architecture enhancements to ProSe UE-to-Network Relay
16 p.	TR 33.844	REL 11	Security Study on IMS Based Peer-to-Peer Content Distribution Services
33 p.	TR 33.845	REL 17	Study on Storage and Transport of 5GC Security parameters for ARPF authentication
64 p.	TR 33.846	REL 17	Study on Authentication enhancements in the 5G System (5GS)
166 p.	TR 33.847	REL 17	Study on Security aspects of enhancement for Proximity based services in the 5G System (5GS)
55 p.	TR 33.848	REL 18	Study on Security impacts of Virtualisation
31 p.	TR 33.849	REL 14	Study on Subscriber Privacy impact in 3GPP
51 p.	TR 33.850	REL 17	Study on Security aspects of enhancements for 5G Multicast-Broadcast Services (MBS)
19 p.	TR 33.851	REL 17	Study on Security for enhanced support of Industrial Internet of Things (IIoT)
66 p.	TR 33.853	REL 17	Study on key issues and potential solutions for integrity protection of the User Plane (UP)
62 p.	TR 33.854	REL 17	Study on Security aspects of Uncrewed Aerial Systems (UAS)
103 p.	TR 33.855	REL 16	Study on Security aspects of the 5G Service Based Architecture (SBA)
16 p.	TR 33.856	REL 16	Study on Security aspects of Single Radio Voice Continuity from 5G to UTRAN
85 p.	TR 33.857	REL 17	Study on enhanced Security support for Non-Public Networks (NPN)
35 p.	TR 33.858	REL 18	Study on Security aspects of enhanced support of Non-Public Networks (NPN) – Phase 2
67 p.	TR 33.859	REL 11	Study on the Introduction of Key Hierarchy in UTRAN
46 p.	TR 33.860	REL 13	Study on eGPRS Access Security enhancements with relation to CIoT
73 p.	TR 33.861	REL 16	Study on evolution of CIoT Security for the 5G System
26 p.	TR 33.862	REL 17	Study on security aspects of the Message Service for MIoT over the 5G System (MSGin5G)
109 p.	TR 33.863	REL 14	Study on Battery efficient Security for Very Low Throughput MTC Devices
64 p.	TR 33.864	REL 17	Study on the Security of Access and Mobility Management Function (AMF) re-allocation
51 p.	TR 33.866	REL 17	Study on Security aspects of enablers for Network Automation (eNA) for 5GS) Phase 2
32 p.	TR 33.867	REL 17	Study on user consent for 3GPP services
116 p.	TR 33.868	REL 12	Study on Security aspects of MTC and other Mobile Data Applications Communications enhancements
52 p.	TR 33.871	REL 12	Study on Security for WebRTC IMS Client Access to IMS
018 p.	TR 33.872	REL 13	Study on Security enhancements to Web Real Time Communication (WebRTC) Access to IMS
11 p.	TR 33.873	REL 17	Study on the Security of the System Enablers for devices having MUSIMs
12 p.	TR 33.874	REL 18	Study on enhanced Security for Network Slicing Phase 2
84 p.	TR 33.875	REL 18	Study on enhanced Security aspects of the 5G Service Based Architecture (SBA)
65 p.	TR 33.876	REL 18	Study on Automated Certificate Management in Service-Based Architecture (SBA)
11 p.	TR 33.877	REL 18	Study on the Security aspects of AI/ML for the Next Generation Radio Access Network (NG-RAN)
88 p.	TR 33.879	REL 13	Study on Security enhancements for Mission Critical Push To Talk (MCPTT) over LTE
125 p.	TR 33.880	REL 15	Study on Mission Critical Security enhancements
21 p.	TR 33.881	REL 17	Study on Non-Seamless WLAN Offload (NSWO) in 5G System (5GS) using 3GPP credentials
26 p.	TR 33.882	REL 18	Study on Personal IoT Networks Security aspects
16 p.	TR 33.883	REL 18	Study on Security enhancements for 5G Multicast-Broadcast services Phase 2
49 p.	TR 33.884	REL 18	Study on Security of Application enablement aspects for Subscriber-aware Northbound API access
74 p.	TR 33.885	REL 14	Study on Security aspects for LTE support of V2X Services
16 p.	TR 33.886	REL 18	Study on enhanced Security for Network Slicing – Phase 3
40 p.	TR 33.887	REL 18	Study on Security aspects for support for 5WWC – Phase 2
44 p.	TR 33.888	REL 12	Study on Security issues to support Group Communication System Enablers (GCSE) for LTE
25 p.	TR 33.889	REL 13	Study on Security aspects of MTC Architecture and Feature enhancements
23 p.	TR 33.890	REL 18	Study on Security support for Next Generation Real Time Communication services
22 p.	TR 33.891	REL 18	Study on Security of Phase 2 for UAS, UAV and UAM
13 p.	TR 33.892	REL 18	Study on UE Route Selection Policy (URSP) rules to securely identify applications
97 p.	TR 33.893	REL 18	Study on Security aspects of Ranging-based services and Sidelink Positioning
17 p.	TR 33.894	REL 18	Study on applicability of the zero trust security principles in mobile networks
18 p.	TR 33.896	REL 18	Study of Security aspects on User Consent for 3GPP Services – Phase 2
24 p.	TR 33.897	REL 13	Study on Isolated E-UTRAN operation for Public Safety – Security aspects
17 p.	TR 33.898	REL 18	Study on Security and Privacy of AI/ML-based services and applications in 5G


18 p.	TR 33.901	REL 3 → 4	Criteria for cryptographic Algorithm design process
10 p.	TR 33.902	REL 3 → 4	Formal Analysis of the 3G Authentication Protocol
17 p.	TR 33.905	REL 7 → 19	Recommendations for Trusted Open Platforms
26 p.	TR 33.908	REL 3 → 4	Report on design, specification and evaluation of 3GPP confidentiality and integrity algorithms
30 p.	TR 33.909	REL 4	Report on the design and evaluation of the MILENAGE algorithm set
42 p.	TR 33.916	REL 14 → 19	Security Assurance Methodology for 3GPP network products
13 p.	TR 33.918	REL 7	GAA – Early implementation of HTTPS connection between a UICC and a NAF
18 p.	TR 33.919	REL 6 → 19	GAA – System description
9 p.	TR 33.920	REL 7	SIM Card based GBA – Early implementation feature
42 p.	TR 33.924	REL 9 → 19	Identity management and GAA interworking
111 p.	TR 33.926	REL 13 → 19	SCAS Threats and Critical Assets in 3GPP Network Product Classes
20 p.	TR 33.927	REL 18 → 19	SCAS Threats and Critical Assets in 3GPP Virtualized Network Product Classes
68 p.	TR 33.928	REL 18 → 19	ADMF Logic for provisioning Lawful Interception (LI)
16 p.	TR 33.935	REL 16 → 19	Study on detailed Long Term Key Update Process (LTKUP) detailed solutions
21 p.	TR 33.936	REL 18 → 19	Security Assurance Methodology (SECAM) for 3GPP Virtualized Network Products
98 p.	TR 33.937	REL 9 → 19	Study of mechanisms for Protection against Unsolicited Communication for IMS (PUCI)
19 p.	TR 33.938	REL 19	3GPP Cryptographic Inventory
118 p.	TR 33.969	REL 12 → 19	Study on security aspects of Public Warning System (PWS)
29 p.	TR 33.978	REL 6 → 7	Security aspects of early IMS
42 p.	TR 33.980	REL 7 → 19	Liberty Alliance ID-FF, ID-WSF and GAA
39 p.	TR 33.995	REL 13 → 19	Study on Security aspects of integration of SSO frameworks with 3GPP operator-controlled resources and mechanisms