Security readout for executives and security teams
Plain-English summary
CVE-2020-36994 is a local denial-of-service issue in QlikView 12.50.20000.0. A person with local access to the application can crash it through the FTP server address field, disrupting normal use. This is mainly an availability risk, not a data theft or remote takeover issue based on the provided sources.
Executive priority
Treat this as a moderate operational continuity issue. It is unlikely to be a breach driver based on current evidence, but it can disrupt analytics workflows if affected systems are accessible to untrusted local users.
Technical view
QlikView 12.50.20000.0 is reported vulnerable to a buffer-handling flaw in the FTP server address input field. The CVSS v3.1 score is 6.2 with local attack vector and high availability impact. The record maps to CWE-120. Public exploit information exists, but the source bundle does not show CISA KEV listing or active exploitation.
Likely exposure
Exposure is limited to environments running QlikView 12.50.20000.0 where untrusted or low-trust users can access the local application interface. Remote internet exposure is not indicated by the provided CVSS vector or description.
Exploitation context
The source bundle references an Exploit-DB entry, so public proof-of-concept information exists. However, KEV is false and no cited source states active exploitation. The attack requires local access to the affected QlikView application.
Researcher notes
The available record describes a local application crash via the FTP server address field and cites CWE-120. No vendor fix details are included in the provided sources. Avoid assuming other Qlik products or versions are affected without additional vendor confirmation.
Mitigation direction
- Identify any QlikView 12.50.20000.0 installations.
- Check Qlik vendor guidance for fixed versions or supported upgrade paths.
- Restrict local access to QlikView systems to trusted users.
- Prioritize remediation where QlikView supports business-critical reporting.
- Monitor affected hosts for repeated application crashes.
Validation and detection
- Confirm installed QlikView versions across workstations and servers.
- Verify whether version 12.50.20000.0 is present.
- Review who has local interactive access to affected systems.
- Check logs or helpdesk tickets for unexplained QlikView crashes.
- Track vendor advisories for remediation details.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-120: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2020-36994 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H2.53.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.2MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-48732CVE reference · exploit
- Vendor HomepageCVE reference · product
- VulnCheck Advisory: QlikView 12.50.20000.0 - 'FTP Server Address' Denial of ServiceCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.