Possible xrdp RCE Exploitation via ts_info_utf16_in Buffer Overflow (via application)

ATT&CK techniques

Initial Access → Lateral Movement

Recon
Resource Dev
Initial Access
- T1190Exploit Public-Facing Application
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
- T1210Exploitation of Remote Services
Collection
C2
Exfiltration
Impact

What it detects

This rule detects xrdp log messages indicating an output buffer overflow in ts_info_utf16_in or a stack smashing abort, artifacts produced when CVE-2025-68670 is exploited through an oversized Client Info PDU domain field. The overflow can lead to remote code execution against the xrdp service. Detecting these log lines surfaces active exploitation of the vulnerable service.

Reporting behind it

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Possible xrdp RCE Exploitation via ts_info_utf16_in Buffer Overflow (via application)

Pivot detection · T1190 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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