Medium severity · published Oct 13, 2026
CVE-2026-109942
FreeRDP 2.3.0 before 3.32.0 NULL Pointer Dereference via RD Gateway Close Channel Packet
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
FreeRDP 2.3.0 before 3.32.0 dereferences a NULL stream in rdg_process_close_packet in libfreerdp/core/gateway/rdg.c because rdg_process_control_packet accepts a header-only PKT_TYPE_CLOSE_CHANNEL packet and passes the null payload without a check. A malicious or compromised RD Gateway can send an eight-byte CLOSE_CHANNEL header to crash a connecting FreeRDP client.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
FreeRDP · FreeRDP
2.3.0 before 3.32.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109942
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109942
vendor-advisory
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f46f-pxh9-w2rh
third-party-advisory
https://www.vulncheck.com/advisories/freerdp-2.3.0-before-3.32.0-null-pointer-dereference-via-rd-gateway-close-channel-packet
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