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CVE-2020-37109: aSc TimeTables 2020.11.4 - Denial of Service

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-07 · updated 2026-06-17
• Weakness: CWE-120

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.

Affected products

• asc Applied Software Consultants aSc TimeTables: 2020.11.4

References

• https://www.asctimetables.com/#!/home
• https://www.exploit-db.com/exploits/48133
• https://www.vulncheck.com/advisories/asc-timetables-denial-of-service

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