CVE-2026-110829

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.

CVSS 4.0

7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 23% of CVEs (scores of 2026-10-25)

CWE

CWE-476

Published

2026-10-14

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

Affected

• freerdp:freerdp

References

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3mq5-xh88-9v62
• https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-null-pointer-dereference-via-rdpsnd-fragment
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3mq5-xh88-9v62

Check your stackJSON