High [CVE-2026-91963] Remote code execution via uninitialized heap memory disclosure
This high-severity Red Hat Linux advisory covers CVE-2026-91963; related products: Red Hat Enterprise Linux 10.
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Summary
Remote code execution via uninitialized heap memory disclosure. Red Hat rates this important (CVSS 8.8).
Weakness: CWE-824. Red Hat lists fixing advisory RHSA-2026:75570 with package freerdp-2:3.10.3-12.el10_2.14.
Affected product named by the advisory: Red Hat Enterprise Linux 10.
- < 3.31.0
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
- freerdp-2:3.10.3-12.el10_2.14
- RHSA-2026:75570
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
Mitigation checklist
- To reduce exposure, avoid connecting to untrusted RDP servers or disable the FreeRDP USB redirection channel if it is not required. When using the `xfreerdp` client, ensure that USB redirection is not enabled. This can be done by omitting the `/usb` or `/usb-redir` command-line options, or by explicitly disabling the `urbdrc` channel through FreeRDP configuration if available. Disabling this feature will prevent the redirection of USB devices to the remote session.
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
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