CVE-2026-24678

Summary

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, A capture thread sends sample responses using a freed channel callback after a device channel close, leading to a use after free in ecam_channel_write. This vulnerability is fixed in 3.22.0.

Affected Software

Weaknesses

• CWE-416: CWE-416: Use After Free

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

freerdp: FreeRDP: Denial of Service via use after free in ecam_channel_write

Additional References

• https://access.redhat.com/security/cve/CVE-2026-24678
• https://bugzilla.redhat.com/show_bug.cgi?id=2438197
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24678.json
• https://access.redhat.com/errata/RHSA-2026:4121
• https://access.redhat.com/errata/RHSA-2026:3068
• https://access.redhat.com/errata/RHSA-2026:19033

References

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-6gvg-29wx-6v7h
• https://github.com/FreeRDP/FreeRDP/commit/f3ab1a16139036179d9852745fdade18fec11600

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