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01 Record

CVE-2025-15621

Sparx Enterprise Architect Client does not verify the receiver of OAuth2 credentials during OpenID authentication

MediumPUBLISHEDCNA: NCSC-FI
CNA base score5.7 CVSS v4.0CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/S:P/AU:Y/V:C/RE:M

02 Description

Sparx Enterprise Architect Client does not verify the receiver of OAuth2 credentials during OpenID authentication

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.10% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 1.0% of scored records. A rank, not a probability.
NVD base score
5.7 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:X/V:C/RE:M/U:X
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-07.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-04-16 12:40Z6 MO AGO
Last updated
2026-04-16 12:51Z6 MO AGO
Reserved
2026-04-09
Assigning CNA
NCSC-FI
Record state
PUBLISHED
Severity
Medium (CVSS 5.7)
CNA CVSS vector
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/S:P/AU:Y/V:C/RE:M
Weaknesses
  • CWE-522Insufficiently Protected CredentialsClass
Data version
5.2
Document digest
9366ac6bf0413ce1743b2618ba41bda76ad2bc0147cc09a449f2c12ea714df74

05 Affected products

VendorProductVersionsPlatforms
Sparx Systems Pty Ltd.Sparx Enterprise Architect16.1.1627—

06 References

07 Remediation

Update to fixed version