Vulnerability · Published May 19, 2026 · Assigned by CERT-PL
CVE-2026-42100DoS in Sparx Pro Cloud Server
High 7.1
In plain English
A high-severity security flaw in Pro Cloud Server from Sparx Systems. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).
Official description
Improper Handling of Syntactically Invalid Structure in Sparx Pro Cloud Server allows Denial of Service (DoS) attack to be executed by sending an specially crafted SQL query. This causes the Pro Cloud Server service to terminate unexpectedly. The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version 6.1 (build 167) and below were tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Sparx Systems | Pro Cloud Server | 0 – through 6.1 |
Weakness: CWE-228 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
References
- https://cert.pl/en/posts/2026/05/CVE-2026-42096 third-party-advisory
- https://sparxsystems.com/products/procloudserver/ product
- https://sploit.tech/2026/05/19/Sparx-Enterprise-Architect-PCS.html technical-description
- https://efigo.pl/blog/CVE-2026-42096/ third-party-advisory