Xorg: xmayland: value overflow in xkbsetcompatmap() (X.Org Xwayland)

CVE-2025-62231

HIGH 7.3

At a glance

Source: NVD
EPSS: EPSS 0.30 % · percentile 22 (2026-10-29)
State: PUBLISHED
Published: 2025-10-30 05:08 UTC
Updated: 2026-04-20 13:50 UTC
Assigner: redhat
NVD status: Analyzed

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Description

A flaw was identified in the X.Org X server’s X Keyboard (Xkb) extension where improper bounds checking in the XkbSetCompatMap() function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a crash.

Weaknesses (CWE)

CWE-190 — Integer Overflow or Wraparound

References

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H	redhat
CVSS 3.1	HIGH 7.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H	NVD · secalert@redhat.com (Secondary)

European references

ENISA EUVD · EUVD-2025-36898
GCVE · GCVE-0-2025-62231

CERT-FR advisories

CERTFR-2026-AVI-0196 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2025-AVI-0966 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:* < 21.1.19
cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:* < 24.1.9
cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:* ≥ 4.1.0 < 4.1.1.30
cpe:2.3:a:ibm:vios:4.1.2.0:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* ≥ 7.2.5 < 7.2.5.12
cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* ≥ 7.3.2 < 7.3.3.3
cpe:2.3:o:ibm:aix:7.3.4:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_aus:8.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_aus:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_aus:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_els:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_els:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:9.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_tus:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_tus:8.8:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.8:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:9.2:*:*:*:*:*:*:*

Affected products

Product	Versions
X.Org · Xwayland	affected 0 < 24.1.9
Red Hat · Red Hat Enterprise Linux 10	unaffected 0:24.1.5-5.el10_0 < *
Red Hat · Red Hat Enterprise Linux 10	unaffected 0:24.1.5-5.el10_1 < *
Red Hat · Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION	unaffected 0:1.1.0-25.el6_10.15 < *
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Support	unaffected 0:1.20.4-33.el7_9 < *
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Support	unaffected 0:1.8.0-36.el7_9.3 < *
Red Hat · Red Hat Enterprise Linux 8	unaffected 0:21.1.3-19.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8	unaffected 0:1.20.11-27.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8	unaffected 0:1.15.0-8.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Support	unaffected 0:1.9.0-15.el8_2.15 < *
Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Support	unaffected 0:1.20.6-5.el8_2 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	unaffected 0:1.11.0-8.el8_4.14 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	unaffected 0:1.20.10-3.el8_4 < *
Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	unaffected 0:1.11.0-8.el8_4.14 < *
Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	unaffected 0:1.20.10-3.el8_4 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	unaffected 0:1.12.0-6.el8_6.15 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	unaffected 0:1.20.11-6.el8_6 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	unaffected 0:21.1.3-2.el8_6.5 < *
Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update Service	unaffected 0:1.12.0-6.el8_6.15 < *
Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update Service	unaffected 0:1.20.11-6.el8_6 < *

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

⚠️ Xorg: xmayland: value overflow in xkbsetcompatmap() (X.Org Xwayland)