Xftp FTP Client <= 3.0 PWD Response Buffer Overflow
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
Xftp FTP Client version up to and including 3.0 (build 0238) contain a stack-based buffer overflow vulnerability triggered by a maliciously crafted PWD response from an FTP server. When the client connects to a server and receives an overly long directory string in response to the PWD command, the client fails to properly validate the length of the input before copying it into a fixed-size buffer. This results in memory corruption and allows remote attackers to execute arbitrary code on the client system.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| NetSarang Computer, Inc. | Xftp FTP Client | up to 3.0 (build 0238) | — | No fix listed | CNA |
- Xftp FTP Client VendorNetSarang Computer, Inc. Affected up to 3.0 (build 0238) Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2010-20122
- 2026-10-03 Alias added: GHSA-23ff-vxpg-784h
References
Exploit 3
More NetSarang Computer, Inc. vulnerabilities
- TI-2017-14269 NetSarang v5.0 Malicious Backdoor Supply Chain Compromise CVSS 4.0CRITICAL 9.3
Sources
- CVE-2010-20122 · CVE Program
- CVE-2010-20122 · NVD
- FIRST EPSS
- GHSA-23ff-vxpg-784h · GitHub Advisory Database · CC BY 4.0
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