CVE-2026-27015
mediumpriority · track · 26EPSS 0.005 · 39 %ileDEEURUUSEPSS · scored 2026-10-23
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a missing bounds check in `smartcard_unpack_read_size_align()` (`libfreerdp/utils/smartcard_pack.c:1703`) allows a malicious RDP server to crash the FreeRDP client via a reachable `WINPR_ASSERT` → `abort()`. The crash occurs in upstream builds where `WITH_VERBOSE_WINPR_ASSERT=ON` (default in FreeRDP 3.22.0 / current WinPR CMake defaults). Smartcard redirection must be explicitly enabled by the user (e.g., `xfreerdp /smartcard`; `/smartcard-logon` implies `/smartcard`). Version 3.23.0 fixes the issue.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.1–6.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (18)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-0514FreeRDP: Mehrere SchwachstellenDeutsch2026-02-24csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in FreeRDP ausnutzen, um beliebigen Programmcode auszuführen, und um einen Denial of Service Angriff durchzuführen.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://github.com/FreeRDP/FreeRDP/commit/65d59d3b3c2f630f2ea862687ecf5f95f8115244cnnvd
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7g72-39pq-4725cnnvd
- https://vigilance.fr/vulnerability/FreeRDP-denial-of-service-via-smartcard-unpack-read-size-align-50083cnnvd
- https://www.freerdp.com/Patchcnnvd
- https://github.com/FreeRDP/FreeRDP/commit/65d59d3b3c2f630f2ea862687ecf5f95f8115244enisa_euvd
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7g72-39pq-4725enisa_euvd
- https://github.com/FreeRDP/FreeRDP/commit/65d59d3b3c2f630f2ea862687ecf5f95f8115244Patchnvd
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7g72-39pq-4725ExploitMitigationPatchVendor Advisorynvd
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