CVE-2025-26594

X.org: xwayland: use-after-free of the root cursor

HIGH 7.8

En bref

Source: NVD
EPSS: EPSS 0.39 % · centile 33 (2026-10-28)
État: PUBLISHED
Publiée: 2025-02-25 15:53 UTC
Mise à jour: 2026-06-29 20:36 UTC
Attribuée par: redhat
Statut NVD: Modified

Description

A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free.

Faiblesses (CWE)

CWE-416 — Utilisation après libération

Références

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	redhat
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	NVD · secalert@redhat.com (Secondary)
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)

Références européennes

ENISA EUVD · EUVD-2025-5370
GCVE · GCVE-0-2025-26594

Avis du CERT-FR

CERTFR-2025-AVI-0855 — Multiples vulnérabilités dans les produits Juniper Networks · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

cpe:2.3:a:tigervnc:tigervnc:-:*:*:*:*:*:*:*
cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:* < 21.1.16
cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:* < 24.1.6
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

Produits affectés

Produit	Versions
xserver	affected 0 < 21.1.16 ; affected 22.0.0 < 24.1.6
Red Hat · Red Hat Enterprise Linux 10	unaffected 0:24.1.5-3.el10_0 < *
Red Hat · Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION	unaffected 0:1.1.0-25.el6_10 < *
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Support	unaffected 0:1.8.0-36.el7_9 < *
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Support	unaffected 0:1.20.4-30.el7_9 < *
Red Hat · Red Hat Enterprise Linux 8	unaffected 0:1.13.1-15.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Support	unaffected 0:1.9.0-15.el8_2.13 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	unaffected 0:1.11.0-8.el8_4.12 < *
Red Hat · Red Hat Enterprise Linux 8.4 Telecommunications Update Service	unaffected 0:1.11.0-8.el8_4.12 < *
Red Hat · Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions	unaffected 0:1.11.0-8.el8_4.12 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	unaffected 0:1.12.0-6.el8_6.13 < *
Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update Service	unaffected 0:1.12.0-6.el8_6.13 < *
Red Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions	unaffected 0:1.12.0-6.el8_6.13 < *
Red Hat · Red Hat Enterprise Linux 8.8 Extended Update Support	unaffected 0:1.12.0-15.el8_8.12 < *
Red Hat · Red Hat Enterprise Linux 9	unaffected 0:1.14.1-1.el9_5.1 < *
Red Hat · Red Hat Enterprise Linux 9	unaffected 0:1.20.11-28.el9_6 < *
Red Hat · Red Hat Enterprise Linux 9	unaffected 0:23.2.7-3.el9_6 < *
Red Hat · Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	unaffected 0:1.11.0-22.el9_0.13 < *
Red Hat · Red Hat Enterprise Linux 9.2 Extended Update Support	unaffected 0:1.12.0-14.el9_2.10 < *
Red Hat · Red Hat Enterprise Linux 9.4 Extended Update Support	unaffected 0:1.13.1-8.el9_4.5 < *

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD