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This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Description
A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size.
Metrics
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CVE Modified by Red Hat, Inc.5/13/2025 11:15:54 AM
Action
Type
Old Value
New Value
Added
Reference
https://access.redhat.com/errata/RHSA-2025:7163
Added
Reference
https://access.redhat.com/errata/RHSA-2025:7165
Modified Analysis by NIST5/08/2025 2:01:53 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added
CWE
CWE-787
Changed
CPE Configuration
OR
*cpe:2.3:a:x.org:x_server:-:*:*:*:*:*:*:*
*cpe:2.3:a:x.org:xwayland:-:*:*:*:*:*:*:*
OR
*cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:* versions up to (excluding) 21.1.16
*cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:* versions up to (excluding) 24.1.6
Added
Reference Type
Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2025:2500 Types: Third Party Advisory
Added
Reference Type
Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2025:2502 Types: Third Party Advisory
Added
Reference Type
Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2025:2861 Types: Third Party Advisory
Added
Reference Type
Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2025:2862 Types: Third Party Advisory
Added
Reference Type
Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2025:2865 Types: Third Party Advisory
Added
Reference Type
Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2025:2866 Types: Third Party Advisory
Added
Reference Type
Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2025:2873 Types: Third Party Advisory
Added
Reference Type
Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2025:2874 Types: Third Party Advisory
Added
Reference Type
Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2025:2875 Types: Third Party Advisory
Added
Reference Type
Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2025:2879 Types: Third Party Advisory
Added
Reference Type
Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2025:2880 Types: Third Party Advisory
CVE Modified by Red Hat, Inc.3/17/2025 1:15:34 AM
Action
Type
Old Value
New Value
Added
Reference
https://access.redhat.com/errata/RHSA-2025:2861
Added
Reference
https://access.redhat.com/errata/RHSA-2025:2866
Added
Reference
https://access.redhat.com/errata/RHSA-2025:2873
Added
Reference
https://access.redhat.com/errata/RHSA-2025:2879
Added
Reference
https://access.redhat.com/errata/RHSA-2025:2880
CVE Modified by Red Hat, Inc.3/16/2025 11:15:38 PM
Action
Type
Old Value
New Value
Added
Reference
https://access.redhat.com/errata/RHSA-2025:2865
Added
Reference
https://access.redhat.com/errata/RHSA-2025:2874
Added
Reference
https://access.redhat.com/errata/RHSA-2025:2875
CVE Modified by Red Hat, Inc.3/16/2025 10:15:12 PM
Action
Type
Old Value
New Value
Added
Reference
https://access.redhat.com/errata/RHSA-2025:2862
CVE Modified by Red Hat, Inc.3/10/2025 9:15:35 AM
Action
Type
Old Value
New Value
Added
Reference
https://access.redhat.com/errata/RHSA-2025:2500
Added
Reference
https://access.redhat.com/errata/RHSA-2025:2502
Initial Analysis by NIST3/04/2025 12:40:52 PM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:a:tigervnc:tigervnc:-:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:a:x.org:x_server:-:*:*:*:*:*:*:*
*cpe:2.3:a:x.org:xwayland:-:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*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:*:*:*:*:*:*:*
Added
Reference Type
Red Hat, Inc.: https://access.redhat.com/security/cve/CVE-2025-26595 Types: Third Party Advisory
Added
Reference Type
Red Hat, Inc.: https://bugzilla.redhat.com/show_bug.cgi?id=2345257 Types: Issue Tracking
New CVE Received from Red Hat, Inc.2/25/2025 11:15:38 AM
Action
Type
Old Value
New Value
Added
Description
A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size.