CVE-2026-114042
FreeRDP 3.32.0 Use-After-Free via drdynvc Virtual Channel PDU
- State
- Published
- Severity
- 7.1 High
- Published
- Oct 21, 2026
- Updated
- Oct 22, 2026
- Reserved
- Oct 20, 2026
Description
FreeRDP 3.32.0 contains a use-after-free vulnerability in the drdynvc channel that frees a pool-owned stream with the owned-stream deallocator when totalLength is smaller than the chunk size. A malicious RDP server can send a single well-formed Virtual Channel PDU to trigger the free and crash the client during teardown.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-416 Use After Free
Affected Products
| Product | Versions |
|---|---|
FreeRDPFreeRDP |
|
References
- GitHub Security Advisory (GHSA-5xjc-c64q-m8r6)vendor-advisory
- VulnCheck Advisory: FreeRDP 3.32.0 Use-After-Free via drdynvc Virtual Channel PDUthird-party-advisory
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