How severe is CVE-2026-42100?

CVE-2026-42100 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-42100 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-42100?

CVE-2026-42100 affects Sparxsystems Pro Cloud Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-42100?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-42100 have an EU (EUVD) identifier?

Yes. CVE-2026-42100 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30932.

When was CVE-2026-42100 published?

CVE-2026-42100 was published on 2026-05-19 and last updated on 2026-06-17.

CVE-2026-42100

CVE-2026-42100 is a high-severity vulnerability in Sparxsystems Pro Cloud Server with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-228.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 7.1
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30932
Weakness: CWE-228
Affected product: Sparxsystems Pro Cloud Server
Published: 2026-05-19
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-42100?: CVE-2026-42100 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-42100 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-42100?: CVE-2026-42100 affects Sparxsystems Pro Cloud Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-42100?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-42100 have an EU (EUVD) identifier?: Yes. CVE-2026-42100 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30932.
When was CVE-2026-42100 published?: CVE-2026-42100 was published on 2026-05-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sparxsystems:pro_cloud_server:*:*:*:*:*:*:*:*

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