Pre-authentication code execution via oversized domain string
Published Jan 27, 2026 · Updated Jan 27, 2026
Stack-based buffer overflow in xrdp before 0.10.5 allows remote attackers to execute arbitrary code through a crafted RDP domain string. The xrdp_wm_parse_domain_information function copies a client-controlled domain prefix into the fixed-size resultIP stack buffer without limiting its length to the destination size. No authentication or user interaction is required; stack canaries block direct return-address control unless their value is also disclosed.
Summary
What happened
Stack-based buffer overflow in xrdp before 0.10.5 allows remote attackers to execute arbitrary code through a crafted RDP domain string. The xrdp_wm_parse_domain_information function copies a client-controlled domain prefix into the fixed-size resultIP stack buffer without limiting its length to the destination size. No authentication or user interaction is required; stack canaries block direct return-address control unless their value is also disclosed.
The record
- CVE
- CVE-2025-68670
- Published
- Jan 27, 2026
- Updated
- Jan 27, 2026
- Vendor
- neutrinolabs
- Product
- xrdp
- Classifications
- CWE-121, CWE-787, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 27, 2026CVE publishedPublication date reported by the CVE source.
- Jan 27, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 0.10.5
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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