CVE-2025-26597 – X.Org/Xwayland Buffer Overflow Vulnerability

The following table lists the changes that have been made to the
CVE-2025-26597 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Feb. 25, 2025

    Action Type Old Value New Value
    Added Description A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size.
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-122
    Added Reference https://access.redhat.com/security/cve/CVE-2025-26597
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2345255
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