CVE-2011-4720

Hillstone HS TFTP Server 1.3.2 - Denial of Service via Long Filename in RRQ or WRQ Operation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2011-4720. PoCs published by SecPod Research.

AI-analyzed exploit summary This exploit targets a denial-of-service vulnerability in Hillstone Software HS TFTP Server 1.3.2 by sending a malformed WRITE/READ request with an excessively long filename (>= 222 characters), causing the service to crash.

Description

Hillstone HS TFTP Server 1.3.2 allows remote attackers to cause a denial of service (daemon crash) via a long filename in a (1) RRQ or (2) WRQ operation.

Exploits (1)

exploitdb WORKING POC VERIFIED
by SecPod Research · textdoswindows
https://www.exploit-db.com/exploits/18188

This exploit targets a denial-of-service vulnerability in Hillstone Software HS TFTP Server 1.3.2 by sending a malformed WRITE/READ request with an excessively long filename (>= 222 characters), causing the service to crash.

Classification
Working Poc 100%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Hillstone Software HS TFTP Server 1.3.2
No auth needed
Prerequisites: Network access to the target TFTP server
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References
Exploit x_refsource_misc
http://secpod.org/blog/?p=419

Scores

EPSS 0.0268
EPSS Percentile 83.9%

Details

CWE
CWE-20
Status published
Products (1)
hillstone_software/hs_tftp_server 1.3.2
Published Dec 28, 2014
Tracked Since Feb 18, 2026