High [CVE-2026-91947] Use-after-free vulnerability in DRDYNVC parser leads to memory corruption
This high-severity Red Hat Linux advisory covers CVE-2026-91947; related products: Red Hat Enterprise Linux 10.
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Summary
Use-after-free vulnerability in DRDYNVC parser leads to memory corruption. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-825. 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
- The vulnerability requires an authenticated client to interact with the FreeRDP server. To mitigate this issue, restrict network access to the FreeRDP server to only trusted clients and networks. If the FreeRDP server functionality is not required, consider disabling or uninstalling the FreeRDP server component to eliminate the attack surface.
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
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