{"id":"AZL-84630","summary":"CVE-2026-33999 affecting package xorg-x11-server 1.20.10-6","details":"A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling, allows an attacker with local or remote X11 server access to trigger a buffer read overrun. This can lead to memory-safety violations and potentially a denial of service (DoS) or other severe impacts.","modified":"2026-09-20T05:32:18Z","published":"2026-04-23T16:16:24Z","upstream":["CVE-2026-33999"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33999"}],"affected":[{"package":{"name":"xorg-x11-server","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/xorg-x11-server"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.20.10-6"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-84630.json"}}],"schema_version":"1.9.0"}