{"action":"Upgrade asterisk to 18.2.1-r0 or later.","affected":[{"fixed":"18.2.1-r0","introduced":"16.0.0"}],"component":"asterisk","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.23","exploited":false,"fixed_versions":["18.2.1-r0"],"id":"tcs_01M5ND1RW1B4W4JAF1JSXDD0SZ","modified_at":"2026-10-23T17:17:56.163632267Z","published_at":"2021-02-19T20:15:13.193Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-26713","https://security.alpinelinux.org/vuln/CVE-2021-26713"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-26713#Alpine:v3.23/asterisk","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-26713"}],"summary":"A stack-based buffer overflow in res_rtp_asterisk.c in Sangoma Asterisk before 16.16.1, 17.x before 17.9.2, and 18.x before 18.2.1 and Certified Asterisk before 16.8-cert6 allows an authenticated WebR"}