CEL-37 · Mobile Threat Catalogue
Archived: 2026-04-05 14:38:56 UTC
Mobile Threat Catalogue
Monitor or Redirection of Phone Calls and SMS via SS7 Exploit
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Threat Category: Carrier Interoperability
ID: CEL-37
Threat Description: Leveraging network weaknesses to monitor or forward phone calls or SMS texts to
unintended locations.
Threat Origin
SCTPscan - Finding Entry Points to SS7 Networks & Telecommunication Backbones 1
GSM Sniffing 2
Toward the HLR: Attacking the SS7 & SIGTRAN Applications 3
Exploit Examples
CVE Examples
Possible Countermeasures
Mobile Network Operator
SS7 Firewalls may be deployed throughout the network. See Securing SS7 Telecommunications Networks 4
References
Source: https://pages.nist.gov/mobile-threat-catalogue/cellular-threats/CEL-37.html
https://pages.nist.gov/mobile-threat-catalogue/cellular-threats/CEL-37.html
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