TelcoChisel Telecom Security Advisories https://telcochisel.com/news Authoritative research bulletins, 3GPP CVE analyses, and telecom signaling threat disclosures by TelcoSec. en Fri, 25 Sep 2026 19:11:34 GMT <![CDATA[Critical Advisory: HTTP/2 NRF Authorization Flaws in 5G Standalone Deployments]]> https://telcochisel.com/news/cve-2026-3gpp-sba-auth-bypass https://telcochisel.com/news/cve-2026-3gpp-sba-auth-bypass Fri, 18 Sep 2026 00:00:00 GMT <![CDATA[SS7 Cross-Border Location Tracking Tactics Observed Against Tier-1 Operators]]> https://telcochisel.com/news/ss7-location-tracking-carrier-advisory https://telcochisel.com/news/ss7-location-tracking-carrier-advisory Thu, 10 Sep 2026 00:00:00 GMT