VULNERABILITY INTELLIGENCE

CVE-2025-26599

CVSS score7.8 HIGH
EPSS probability0.40%
CISA KEVNot currently listed
Published2025-02-25
Last modified2026-06-29
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

An access to an uninitialized pointer flaw was found in X.Org and Xwayland. The function compCheckRedirect() may fail if it cannot allocate the backing pixmap. In that case, compRedirectWindow() will return a BadAlloc error without validating the window tree marked just before, which leaves the validated data partly initialized and the use of an uninitialized pointer later.

Weakness classification

  • secalert@redhat.com: CWE-824
  • nvd@nist.gov: CWE-824

Primary references