{"action":"Upgrade htmldoc to 1.9.11-3 or later.","affected":[{"fixed":"1.9.11-3","introduced":"0"}],"component":"htmldoc","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1.9.11-3"],"id":"tcs_01M5NFBHM5BGH8H1WERAFRHTCK","modified_at":"2026-10-23T18:03:10.904210178Z","published_at":"2021-04-05T22:15:12.947Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-20308","https://security-tracker.debian.org/tracker/CVE-2021-20308"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-20308","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-20308"}],"summary":"Integer overflow in the htmldoc 1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service that is similar to CVE-2017-9181."}