FreeRDP before 3.33.0 contains a heap use-after-free vulnerability in update_gdi_patblt(), update_gdi_polygon_cb() and update_gdi_mem3blt() that retain stale brush cache pointers. A malicious RDP server can resend CACHE_BRUSH to the same slot then send PATBLT, causing clients to read freed heap memory, disclosing data or crashing.
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Affected Vendors & Products
Advisories
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Fixes
Solution
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Workaround
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References
History
Mon, 09 Nov 2026 23:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | FreeRDP before 3.33.0 contains a heap use-after-free vulnerability in update_gdi_patblt(), update_gdi_polygon_cb() and update_gdi_mem3blt() that retain stale brush cache pointers. A malicious RDP server can resend CACHE_BRUSH to the same slot then send PATBLT, causing clients to read freed heap memory, disclosing data or crashing. | |
| Title | FreeRDP before 3.33.0 Use-After-Free via Stale Brush Cache Pointer | |
| First Time appeared |
Freerdp
Freerdp freerdp |
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| Weaknesses | CWE-416 | |
| CPEs | cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Freerdp
Freerdp freerdp |
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| References |
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| Metrics |
cvssV3_1
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Projects
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MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-11-09T23:27:58.697Z
Reserved: 2026-11-09T22:03:12.932Z
Link: CVE-2026-125394
Vulnrichment
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NVD
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OpenCVE Enrichment
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Weaknesses