Vulnerability in Sparx Systems Pro Cloud Server
CVE-2026-42100
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (49.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.006 · change: -0.000
Affected products
Weakness classification (CWE)
References
- cert.pl/en/posts/2026/05/CVE-2026-42096 (Third Party Advisory, third-party-advisory)
- sparxsystems.com/products/procloudserver/ (Product, product)
- sploit.tech/2026/05/19/Sparx-Enterprise-Architect-PCS.html (Exploit, technical-description, Third Party Advisory)
- efigo.pl/blog/CVE-2026-42096/ (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-42100?
- CVE-2026-42100 is a high-severity vulnerability in Sparx Systems Pro Cloud Server, classified under CWE-228. CVSS score: 7.5/10. Published 2026-05-19.
- How severe is CVE-2026-42100?
- High severity. CVSS v3 base score is 7.5 out of 10.