Stack-based Buffer Overflow in freeFTPd by FreeFTPd
CVE-2013-10042

9.3CRITICAL

Key Information:

Vendor

Freeftpd

Status
Freeftpd
Vendor
CVE Published:
31 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2013-10042?

A stack-based buffer overflow vulnerability has been identified in freeFTPd versions up to 1.0.10, particularly in the processing of the FTP PASS command. This flaw arises from insufficient validation of input length for password strings provided by users. An attacker can exploit this vulnerability by sending a specially crafted password, which can lead to memory corruption. If succeeded, it may cause denial of service or allow execution of arbitrary code. It's important to note that exploitation requires the anonymous user account to be activated, making it critical for users to review their configuration and security practices.

Affected Version(s)

freeFTPd Windows * <= 1.0.10

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2013-10042 - Proof of Concept

CVE-2013-10042 - Proof of Concept

References

https://raw.githubusercontent.com/rapid7/metasploit-frame...
exploit
https://www.exploit-db.com/exploits/27747
exploit
https://www.vulncheck.com/advisories/freeftpd-pass-comman...
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Wireghoul
.
CVE-2013-10042 : Stack-based Buffer Overflow in freeFTPd by FreeFTPd