CVE-2026-33982
FreeRDP: FreeRDP: Information disclosure and denial of service via heap-buffer-overflow read
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · March 31, 2026
Updated · June 30, 2026
Description
A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol. This vulnerability, a heap-buffer-overflow read, exists in the winpr_aligned_offset_recalloc() function. A local attacker could exploit this flaw, with user interaction, to read sensitive information from memory, leading to information disclosure, or cause the application to crash, resulting in a denial of service.
Statement
Red Hat systems require user authentication in order to interact with FreeRDP binaries. Unauthenticated interaction is not possible in default configurations and so the risk posed by this flaw is slightly mitigated to Red hat customers.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 6.6CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H
CWE-125 · Out-of-bounds Read