Vulnerability · Published Jan 29, 2026 · Assigned by VulnCheck
CVE-2020-36994QlikView 12.50.20000.0 - 'FTP Server Address' Denial of Service
Medium 6.2
In plain English
A medium-severity buffer overflow in QlikView from QlikTech International AB. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Severity (CVSS 3.1)6.2Medium
Exploit odds (30 days)0.2%top 91.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| QlikTech International AB | QlikView | 12.50.20000.0 |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- ExploitDB-48732 exploit
- Vendor Homepage product
- VulnCheck Advisory: QlikView 12.50.20000.0 - 'FTP Server Address' Denial of Service third-party-advisory