Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, in resize_vbar_entry() in libfreerdp/codec/clear.c, vBarEntry->size is updated to vBarEntry->count before the winpr_aligned_recalloc() call. If realloc fails, size is inflated while pixels still points to the old, smaller buffer. On a subsequent call where count <= size (the inflated value), realloc is skipped. The caller then writes count * bpp bytes of attacker-controlled pixel data into the undersized buffer, causing a heap buffer overflow. This issue has been patched in version 3.24.2.

INFO

Published Date :

2026-03-30T21:42:57.090Z

Last Modified :

2026-03-30T21:42:57.090Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-33984 vulnerability.

Vendors Products
Freerdp
  • Freerdp
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-33984.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Privileges Required
User Interaction
Scope
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Integrity Impact
Availability Impact