Denial of Service Vulnerability in QlikView by Qlik
CVE-2020-36994

6.2NONE

Key Information:

Vendor

Qliktech International Ab

Status
Qlikview
Vendor
CVE Published:
29 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-36994?

The QlikView application version 12.50.20000.0 contains a vulnerability in its FTP server address input field. This issue allows local attackers to crash the application by submitting a specially crafted request with a 300-character buffer. Exploiting this vulnerability compromises the application's functionality, leading to potential disruptions for users.

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Affected Version(s)

QlikView 12.50.20000.0

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-2020-36994 - Proof of Concept

References

https://www.exploit-db.com/exploits/48732
exploit
https://www.qlik.com
product
https://www.vulncheck.com/advisories/qlikview-ftp-server-...
third-party-advisory

CVSS V4

Score:
Severity:
NONE
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Luis Martinez
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