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CVE-2026-25953 (GCVE-0-2026-25953)

Vulnerability from cvelistv5 – Published: 2026-02-25 20:27 – Updated: 2026-02-26 15:55
VLAI
Title
FreeRDP has heap-use-after-free in xf_AppUpdateWindowFromSurface (freed appWindow)
Summary
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_AppUpdateWindowFromSurface` reads from a freed `xfAppWindow` because the RDPGFX DVC thread obtains a bare pointer via `xf_rail_get_window` without any lifetime protection, while the main thread can concurrently delete the window through a fastpath window-delete order. Version 3.23.0 fixes the issue.
Severity
5.5 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-26 15:55 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
FreeRDP FreeRDP Affected: < 3.23.0
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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    "dateReserved": "2026-02-09T17:13:54.065Z",
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T07:22:30+00:00",
      "cve": "CVE-2026-25953",
      "id": "CVE-2026-25953",
      "initial_release_date": "2026-02-25T20:27:00.424000+00:00",
      "product_status:known_affected": "31",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "freerdp: FreeRDP: Denial of Service due to use-after-free vulnerability in window handling",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25953.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-28T01:30:51Z",
      "cve": "CVE-2026-25953",
      "id": "CVE-2026-25953",
      "initial_release_date": "2026-02-27T00:25:24Z",
      "product_status:recommended": "160",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-25953",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-25953.json",
      "version": "11"
    }
  }
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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