CVE Watch15 jul 2026

CVE-2026-33984

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

CVSS

7.5

Alto

EPSS

0.4%

p34

KEV

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Exploit Today

0-100

Publicado: 30 mar 2026 · Última mod.: 15 jul 2026 · CWE-122 · CWE-131

EPSS · 30d

0.4%EPSS · 30 días0.4%

2026-08-252026-09-22

Descripción técnica

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.

Referencias oficiales

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