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CVE-2025-62231

Xorg: xmayland: value overflow in xkbsetcompatmap()

HIGH
7.3
CVSS Score
Published: October 30, 2025 at 05:08 AM UTC
Updated: July 1, 2026 at 11:21 PM UTC
11 products affected across 4 vendorsDebian LinuxEnterprise LinuxAIX

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Severity
HIGH7.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
11.0
AIX· IBM
95%
7.2.5 ≤ v < 7.2.5.127.3.2 ≤ v < 7.3.3.37.3.4
Affected range stops below 7.2.5.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.3.3.3, so it looks safe — our inference, not a vendor statement
VIOS· IBM
95%
4.1.0 ≤ v < 4.1.1.304.1.2.0
Affected range stops below 4.1.1.30, so it looks safe — our inference, not a vendor statement
Enterprise Linux· Red Hatrpm
95%
10.08.09.0
Vendor states this is fixed in 0:1.1.0-25.el6_10.15 (unaffected)
Vendor states this is fixed in 0:1.11.0-22.el9_0.16 (unaffected)
Vendor states this is fixed in 0:1.11.0-8.el8_4.14 (unaffected)
Vendor states this is fixed in 0:1.12.0-14.el9_2.13 (unaffected)
Vendor states this is fixed in 0:1.12.0-15.el8_8.16 (unaffected)
Vendor states this is fixed in 0:1.12.0-6.el8_6.15 (unaffected)
Vendor states this is fixed in 0:1.13.1-8.el9_4.8 (unaffected)
Vendor states this is fixed in 0:1.14.1-9.el9_6 (unaffected)
Vendor states this is fixed in 0:1.15.0-6.el9_7 (unaffected)
Vendor states this is fixed in 0:1.15.0-8.el8_10 (unaffected)
Vendor states this is fixed in 0:1.20.10-3.el8_4 (unaffected)
Vendor states this is fixed in 0:1.20.11-12.el9_0 (unaffected)
Vendor states this is fixed in 0:1.20.11-17.el8_8 (unaffected)
Vendor states this is fixed in 0:1.20.11-19.el9_2 (unaffected)
Vendor states this is fixed in 0:1.20.11-27.el8_10 (unaffected)
Vendor states this is fixed in 0:1.20.11-27.el9_4 (unaffected)
Vendor states this is fixed in 0:1.20.11-32.el9_6 (unaffected)
Vendor states this is fixed in 0:1.20.11-32.el9_7 (unaffected)
Vendor states this is fixed in 0:1.20.11-6.el8_6 (unaffected)
Vendor states this is fixed in 0:1.20.4-33.el7_9 (unaffected)
Vendor states this is fixed in 0:1.20.6-5.el8_2 (unaffected)
Vendor states this is fixed in 0:1.8.0-36.el7_9.3 (unaffected)
Vendor states this is fixed in 0:1.9.0-15.el8_2.15 (unaffected)
Vendor states this is fixed in 0:21.1.3-12.el8_8 (unaffected)
Vendor states this is fixed in 0:21.1.3-19.el8_10 (unaffected)
Vendor states this is fixed in 0:21.1.3-2.el8_6.5 (unaffected)
Vendor states this is fixed in 0:21.1.3-4.el9_0 (unaffected)
Vendor states this is fixed in 0:21.1.3-9.el9_2 (unaffected)
Vendor states this is fixed in 0:22.1.9-7.el9_4 (unaffected)
Vendor states this is fixed in 0:23.2.7-5.el9_6 (unaffected)
Vendor states this is fixed in 0:23.2.7-5.el9_7 (unaffected)
Vendor states this is fixed in 0:24.1.5-5.el10_0 (unaffected)
Vendor states this is fixed in 0:24.1.5-5.el10_1 (unaffected)
Vendor states this is fixed in 6 (unknown)
Enterprise Linux Aus· Red Hatrpm
95%
8.28.48.6
Enterprise Linux Els· Red Hatrpm
95%
6.07.0
Enterprise Linux Eus· Red Hatrpm
95%
8.49.4
Enterprise Linux Tus· Red Hat
95%
8.68.8
Enterprise Linux Update Services for SAP Solutions· Red Hatrpm
95%
8.68.89.09.2
X server· X Org
95%
v < 21.1.19
Affected range stops below 21.1.19, so it looks safe — our inference, not a vendor statement

References (38)

VDB Entryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/security/cve/CVE-2025-62231
Issue Trackingx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2402660
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: cverecord
https://access.redhat.com/errata/RHSA-2025:19434
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: cverecord
https://access.redhat.com/errata/RHSA-2025:19432
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: cverecord
https://access.redhat.com/errata/RHSA-2025:19433
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: cverecord
https://access.redhat.com/errata/RHSA-2025:19435
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: cverecord
https://access.redhat.com/errata/RHSA-2025:19489
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: cverecord
https://access.redhat.com/errata/RHSA-2025:19623

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHredhat
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-190

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