{"action":"Upgrade libwebsockets to 4.3.5-3 or later.","affected":[{"fixed":"4.3.5-3","introduced":"0"}],"component":"libwebsockets","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["4.3.5-3"],"id":"tcs_01M5NMVT9XGCP5RJT0ZQRVKCMP","modified_at":"2026-10-09T10:00:10.721957863Z","published_at":"2025-10-20T14:15:40.137Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-11678","https://security-tracker.debian.org/tracker/CVE-2025-11678"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-11678#Debian:14/libwebsockets","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-11678"}],"summary":"Stack-based Buffer Overflow in lws_adns_parse_label in warmcat libwebsockets allows, when the LWS_WITH_SYS_ASYNC_DNS flag is enabled during compilation, to overflow the label_stack, when the attacker"}