Vulnerability · Published Jan 28, 2026 · Assigned by VulnCheck
CVE-2020-36943aSc TimeTables 2021.6.2 - Denial of Service
High 7.5
In plain English
A high-severity resource allocation without limits in asc Timetables from asc Applied Software Consultants, s.r.o.. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.3%top 78.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
aSc TimeTables 2021.6.2 contains a denial of service vulnerability that allows attackers to crash the application by overwriting subject title fields with excessive data. Attackers can generate a 10,000-character buffer and paste it into the subject title to trigger application instability and potential crash.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| asc Applied Software Consultants, s.r.o. | asc Timetables | 2021.6.2 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- ExploitDB-49147 exploit
- Vendor Homepage product
- Software Download Page product
- VulnCheck Advisory: aSc TimeTables 2021.6.2 - Denial of Service third-party-advisory