{"id":"CVE-2021-26937","details":"encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write access and application crash) or possibly have unspecified other impact via a crafted UTF-8 character sequence.","modified":"2026-04-16T04:37:47.948580145Z","published":"2021-02-09T20:15:14.910Z","related":["SUSE-SU-2021:0491-1","SUSE-SU-2021:0492-1","openSUSE-SU-2021:0304-1","openSUSE-SU-2024:11884-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GNWBOIDEPOEQS5RMQVMFKHKXJCGNYWBL/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JJWLXP45POUUYBJRRWPVAWNZDJTLYWVM/"},{"type":"WEB","url":"https://ftp.gnu.org/gnu/screen/"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20250509-0004/"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202105-11"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/02/msg00031.html"},{"type":"ADVISORY","url":"https://www.debian.org/security/2021/dsa-4861"},{"type":"EVIDENCE","url":"http://www.openwall.com/lists/oss-security/2021/02/09/8"},{"type":"EVIDENCE","url":"https://lists.gnu.org/archive/html/screen-devel/2021-02/msg00000.html"},{"type":"EVIDENCE","url":"https://www.openwall.com/lists/oss-security/2021/02/09/3"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26937.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"4.8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"32"}]},{"events":[{"introduced":"0"},{"last_affected":"33"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}