High severity · published Oct 14, 2026
CVE-2026-110833
FreeRDP before 3.32.0 Unbounded Memory Retention via RDPDR Proxy
7.5
CVSS
0.3%
EPSS
No
On KEV
Description
FreeRDP from 3.0.0-beta1 before 3.32.0 fails to enforce cumulative or absolute size limits when reassembling RDPDR channel fragments in the proxy. Attackers can send a FIRST fragment followed by continuation fragments without LAST, growing per-session heap streams proportional to traffic and exhausting proxy memory.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
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
3.0.0-beta1 before 3.32.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-110833
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-110833
Exploit
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-m7g5-gw57-cwcr
Third Party Advisory
https://www.vulncheck.com/advisories/freerdp-before-3.32.0-unbounded-memory-retention-via-rdpdr-proxy
More from FreeRDP
9.8
CVE-2026-63633
FreeRDP: Heap buffer overflow in Opus audio decode (`freerdp_dsp_decode_opus` resizes the wrong stream) — server→client
9.8
CVE-2026-55194
FreeRDPHeap-buffer-overflow write in TS Gateway RPC RESPONSE reassembly due to alloc_hint capacity mismatch
9.8
CVE-2026-55191
FreeRDP: Heap-buffer-overflow write in AVC444 YUV buffer allocation
9.8
CVE-2026-66402
FreeRDP before 3.29.0 TLS Certificate Identity Validation Bypass
9.8
CVE-2026-57156
FreeRDP: Integer overflow leading to heap buffer overflow in Orders Delta Points parsing