{"action":"Upgrade libxml2 to 2.9.14+dfsg-1.3~deb12u3 or later.","affected":[{"fixed":"2.9.14+dfsg-1.3~deb12u3","introduced":"0"}],"component":"libxml2","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["2.9.14+dfsg-1.3~deb12u3"],"id":"tcs_01M5NP3XJF28TCQGFF57BXS7YR","modified_at":"2026-10-13T09:47:25.675274278Z","published_at":"2025-06-12T13:15:25.590Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-6021","https://security-tracker.debian.org/tracker/CVE-2025-6021"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-6021","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-6021"}],"summary":"A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a den"}