CVE-2026-24677
freerdp: FreeRDP has a heap-buffer-overflow in ecam_encoder_compress_h264
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · February 10, 2026
Updated · June 28, 2026
Description
A heap buffer overflow has been discovered in FreeRDP. ecam_encoder_compress_h264 trusts server-controlled dimensions and does not validate the source buffer size, leading to an out-of-bounds read in sws_scale.
Statement
Availability impact is limited to the FreeRDP instance on Red Hat Products. General system availability is not at risk.
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 · 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE-825 · Expired Pointer Dereference