Exploitation ongoing with high activity in latest observed window (2 mentions)
Recommended action window: Immediate (within 24h)
NVD description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP client can trigger a heap-buffer-overflow write in FreeRDP's server-side clipboard (cliprdr) channel by sending a CB_CLIP_CAPS PDU with a too-small capabilitySetLength. This can crash the server process (remote DoS) and may be exploitable for code execution because it corrupts heap memory. This vulnerability is fixed in 3.26.0.
Priority
LOW
Exploitation
ACTIVE
PoC
YES
Patch
NONE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
It is possible to see elevated activities targeting FreeRDP (CVE-2026-44420) https://vuldb.com/vuln/367377/cti
Post summary
The tweet indicates increased activity around FreeRDP CVE‑2026‑44420, suggesting attacks may be underway, but it does not provide exploit code, patches, or technical details.
CVE-2026-44420 Heap Buffer Overflow in FreeRDP Server Clipboard Channel Prior to 3.26.0 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-44420
Post summary
A new Heap Buffer Overflow vulnerability in FreeRDP Server Clipboard Channel (prior to 3.26.0) is disclosed, with technical details but no PoC, exploit, or patch information provided.
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| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | freerdp | freerdp | - | - | - |