CVE-2021-44428

HIGH

Pinkie 2.15 - Denial of Service via TFTP Read Request

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-44428. PoCs published by Yehia Elghaly.

AI-analyzed exploit summary This exploit demonstrates a remote buffer overflow in Pinkie 2.15's TFTP server by sending a malformed read request with an oversized source_file field (32768 bytes), causing a denial-of-service (DoS) condition. The PoC uses UDP to target port 69 and does not include a reverse shell or additional payload.

Description

Pinkie 2.15 allows remote attackers to cause a denial of service (daemon crash) via a TFTP read (RRQ) request, aka opcode 1.

Exploits (1)

exploitdb WORKING POC
by Yehia Elghaly · pythondoswindows
https://www.exploit-db.com/exploits/50535

This exploit demonstrates a remote buffer overflow in Pinkie 2.15's TFTP server by sending a malformed read request with an oversized source_file field (32768 bytes), causing a denial-of-service (DoS) condition. The PoC uses UDP to target port 69 and does not include a reverse shell or additional payload.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Pinkie 2.15
No auth needed
Prerequisites: Pinkie 2.15 TFTP server running on target · Network access to UDP port 69
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References
Third Party Advisory, VDB Entry x_refsource_misc
https://www.exploit-db.com/exploits/50535

Scores

CVSS v3 7.5
EPSS 0.0293
EPSS Percentile 85.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-120
Status published
Products (1)
ipuptime/pinkie 2.15
Published Nov 29, 2021
Tracked Since Feb 18, 2026