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Findings

Vulnerability · CVE-2026-25997

FreeRDP is a free implementation of the Remote Desktop Protocol.

Published Feb 25, 2026 · corrected/updated Jun 17, 2026 · freerdp freerdp · evidence confidence medium

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, reads freed memory because (called from the cliprdr channel thread during auto-reconnect) frees the array while the X11 event thread concurrently iterates it in , triggering a heap use after free. Version 3.23.0 fixes the issue.

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2026-25997 is a medium public vulnerability record for freerdp freerdp. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether freerdp freerdp is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: freerdp/freerdp. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: CVSS 5.5 (technical impact); EPSS awaiting sync or unavailable (not low probability). It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-416. Sources contributing to this record: cve_org, nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.

  • Patch and remediation

    A patch or advisory reference is linked. Open the original publisher for availability by product version.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 25, 2026 · NIST NVD

    Detected

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, reads freed memory because (called from the cliprdr channel thread during auto-reconnect) frees the array while the X11 event thread concurrently iterates it in , triggering a heap use after free. Version 3.23.0 fixes the issue.

  2. Jun 17, 2026 · NIST NVD

    Updated

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, reads freed memory because (called from the cliprdr channel thread during auto-reconnect) frees the array while the X11 event thread concurrently iterates it in , triggering a heap use after free. Version 3.23.0 fixes the issue.

Affected

  • cpe freerdp/freerdpversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-25997

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-25997

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, reads freed memory because (called from the cliprdr channel thread during auto-reconnect) frees the array while the

    nvd.nist.gov

References