CVE-2007-5300

wzdftpd 0.8.0 0.8.2 - Denial of Service via Long USER Command

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2007-5300. PoCs published by k1tk4t.

AI-analyzed exploit summary This exploit sends an overly long 'USER' command (8000 'A' characters) to trigger a buffer overflow in wzdftpd 0.8.0, causing a denial of service (DoS) via an access violation. It is a straightforward network-based attack targeting the FTP service.

Description

Off-by-one error in the do_login_loop function in libwzd-core/wzd_login.c in wzdftpd 0.8.0, 0.8.2, and possibly other versions allows remote attackers to cause a denial of service (daemon crash) via a long USER command that triggers a stack-based buffer overflow. NOTE: some of these details are obtained from third party information.

Exploits (1)

exploitdb WORKING POC VERIFIED
by k1tk4t · perldoswindows
https://www.exploit-db.com/exploits/4498

This exploit sends an overly long 'USER' command (8000 'A' characters) to trigger a buffer overflow in wzdftpd 0.8.0, causing a denial of service (DoS) via an access violation. It is a straightforward network-based attack targeting the FTP service.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: wzdftpd 0.8.0
No auth needed
Prerequisites: Network access to the target FTP service
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (8)

Core 8
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/37010
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/27091
Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2007/3389
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/25967
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/37008
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/4498
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2008/dsa-1452
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/28342

Scores

EPSS 0.0491
EPSS Percentile 91.0%

Details

CWE
CWE-119 CWE-189
Status published
Products (2)
wzdftpd/wzdftpd 0.8.0
wzdftpd/wzdftpd 0.8.2
Published Oct 09, 2007
Tracked Since Feb 18, 2026