CVE-2020-37109 - CVE House

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Status published Medium CVE-2020-37109

aSc TimeTables 2020.11.4 - Denial of Service

6.7 CVSS

Vulnerability Description

aSc TimeTables 2020.11.4 contains a denial of service vulnerability that allows attackers to crash the application by overwriting the Subject title field with a large buffer. Attackers can generate a 1000-character buffer and paste it into the Subject title to trigger an application crash and potential instability.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Ismael Nava

References

Affected Vendor

asc Applied Software Consultants

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Affected Software

aSc TimeTables

Vulnerable Versions:

2020.11.4

Timeline

Official Publish: February 6th, 2026

Last Modified: April 7th, 2026

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1203 Exploitation for Client Execution

T1068 Exploitation for Privilege Escalation

Privilege Escalation

T1055 Process Injection

Defense Evasion

T1105 Ingress Tool Transfer

Command and Control