Description
FreeRDP versions from 3.0.0 before 3.32.0 contain a null pointer dereference in the rdpsnd channel when a fragment sets CHANNEL_FLAG_LAST without CHANNEL_FLAG_FIRST. A malicious RDP server can send a malformed rdpsnd PDU on a fresh channel to crash the client and cause denial of service.
Metrics
CVSS 3.1 6.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| FreeRDP | FreeRDP | >= 3.0.0, < 3.32.0 |
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3mq5-xh88-9v62Exploit, Vendor Advisory
- https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-null-pointer-dereference-via-rdpsnd-fragmentThird Party Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3mq5-xh88-9v62Exploit, Vendor Advisory
Timeline
- Published
- Oct 14, 2026
- Last modified
- Oct 23, 2026
- NVD status
- Analyzed