Gsma Fs.38 Patched May 2026

Addresses risks associated with the interception or exposure of subscriber identity and metadata within SIP signaling.

It introduces the concept of comparing fields across different protocols (e.g., SIP vs. Diameter) to identify discrepancies that signal potential fraud or security breaches. Integration with Other GSMA Standards gsma fs.38

Provides the overarching "Baseline Security Controls" for the entire mobile ecosystem. Addresses risks associated with the interception or exposure

The document categorizes SIP-related risks into three primary domains: gsma fs.38

Focuses on protecting network infrastructure, such as Session Border Controllers (SBCs) and core network nodes, from unauthorized access and denial-of-service (DoS) attacks.