{"action":"Upgrade mbedtls to 3.6.3-1 or later.","affected":[{"fixed":"3.6.3-1","introduced":"0"}],"component":"mbedtls","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["3.6.3-1"],"id":"tcs_01M5NN8MPF55VTTBC0JYKP546K","modified_at":"2026-09-01T20:05:45.375040636Z","published_at":"2025-03-25T06:15:41Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-27809","https://security-tracker.debian.org/tracker/CVE-2025-27809"],"severity":{"label":"medium","score":5.4},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-27809#Debian:13/mbedtls","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-27809"}],"summary":"Mbed TLS before 2.28.10 and 3.x before 3.6.3, on the client side, accepts servers that have trusted certificates for arbitrary hostnames unless the TLS client application calls mbedtls_ssl_set_hostnam"}