{"id":"CVE-2025-49178","title":"A flaw was found in the X server's request handling","summary":"A flaw was found in the X server's request handling. Non-zero 'bytes to ignore' in a client's request can cause the server to skip processing another client's request, potentially leading to a denial of service.","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-667"],"published":"2025-06-17","updated":"2026-06-25","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-49178","references":[{"url":"https://access.redhat.com/errata/RHSA-2025:10258","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10342","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10343","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10344","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10346","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10347","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10348","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10349","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10350","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10351","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10352","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10355","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10356","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10360","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10370","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10374","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10375","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10376","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10377","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10378","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10381","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:10410","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:9303","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:9304","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:9305","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:9306","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:9392","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:9964","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2025-49178","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2369977","label":"secalert@redhat.com"},{"url":"https://gitlab.freedesktop.org/xorg/xserver/-/commit/d55c54cecb5e83eaa2d56bed5cc4461f9ba318c2","label":"secalert@redhat.com"},{"url":"https://www.x.org/wiki/Development/Security/","label":"secalert@redhat.com"},{"url":"https://lists.debian.org/debian-lts-announce/2025/06/msg00028.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.0024,"epssPercentile":0.15438,"ingestedAt":"2026-06-29T13:24:34.377Z","slug":"CVE-2025-49178","body":"## Overview\n\nA flaw was found in the X server's request handling. Non-zero 'bytes to ignore' in a client's request can cause the server to skip processing another client's request, potentially leading to a denial of service.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}