FreeRDP before 3.32.2 contains a heap buffer overflow in transport_default_read_pdu when handling partial Early User Authorization reads during PROTOCOL_HYBRID_EX CredSSP. A malicious RDP server can split the four-byte EUA result into short reads that advance the stream pointer beyond the 16 KiB allocation, causing an out-of-bounds write and client denial of service.
Metrics
Affected Vendors & Products
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 04 Nov 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | FreeRDP before 3.32.2 contains a heap buffer overflow in transport_default_read_pdu when handling partial Early User Authorization reads during PROTOCOL_HYBRID_EX CredSSP. A malicious RDP server can split the four-byte EUA result into short reads that advance the stream pointer beyond the 16 KiB allocation, causing an out-of-bounds write and client denial of service. | |
| Title | FreeRDP before 3.32.2 Heap Buffer Overflow via Early User Authorization Read | |
| First Time appeared |
Freerdp
Freerdp freerdp |
|
| Weaknesses | CWE-787 | |
| CPEs | cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Freerdp
Freerdp freerdp |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-11-04T18:24:32.080Z
Reserved: 2026-11-04T12:48:39.813Z
Link: CVE-2026-121962
No data.
Status : Undergoing Analysis
Published: 2026-11-04T16:17:49.320
Modified: 2026-11-04T19:17:37.680
Link: CVE-2026-121962
No data.
OpenCVE Enrichment
Updated: 2026-11-04T17:45:07Z
Weaknesses