Low [CVE-2026-91957] Use-after-free vulnerability in smartcard RDPDR device handler leading to denial of service or potential code execution
This low-severity Red Hat Linux advisory covers CVE-2026-91957; related products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7.
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Summary
Use-after-free vulnerability in smartcard RDPDR device handler leading to denial of service or potential code execution. Red Hat rates this low (CVSS 3.1).
Weakness: CWE-825.
Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; and 2 more.
Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat package: freerdp.
- < 3.31.0
Official advisory · high-confidence parse· fetched 13 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 13 days ago·verify at source
Mitigation checklist
- To reduce the attack surface, disable smartcard redirection within FreeRDP client configurations if this functionality is not required. This action prevents the vulnerable smartcard RDPDR device handler from being utilized. Refer to FreeRDP documentation for specific instructions on disabling smartcard redirection.
Official advisory · high-confidence parse· fetched 13 days ago·verify at source
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