CVE-2020-36994

MEDIUM

QlikView 12.50.20000.0 - Denial of Service via FTP Server Address Input Field

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-36994. PoCs published by Luis Martínez.

AI-analyzed exploit summary This PoC exploits a local Denial of Service (DoS) vulnerability in QlikView 12.50.20000.0 by overflowing the 'FTP Server Address' field with a buffer of 300 'A' characters, causing the application to crash when pasted and connected.

Description

QlikView 12.50.20000.0 contains a denial of service vulnerability in the FTP server address input field that allows local attackers to crash the application. Attackers can paste a 300-character buffer into the FTP server address field to trigger an application crash and prevent normal functionality.

Exploits (1)

exploitdb WORKING POC
by Luis Martínez · pythondoswindows
https://www.exploit-db.com/exploits/48732

This PoC exploits a local Denial of Service (DoS) vulnerability in QlikView 12.50.20000.0 by overflowing the 'FTP Server Address' field with a buffer of 300 'A' characters, causing the application to crash when pasted and connected.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: QlikView 12.50.20000.0
No auth needed
Prerequisites: Local access to the target system · QlikView application installed and running
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/48732
Various Sources product
https://www.qlik.com

Scores

CVSS v3 6.2
EPSS 0.0017
EPSS Percentile 6.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (1)
QlikTech International AB/QlikView 12.50.20000.0
Published Jan 29, 2026
Tracked Since Feb 18, 2026