CVE-2026-3204

9.8 criticalEPSS 0.6%

Critical (9.8) in devolutions devolutions server. EPSS 0.6% chance of exploitation in the next 30 days.

Improper input validation in the error message page in Devolutions Server 2025.3.16 and earlier allows remote attackers to spoof the displayed error message via a specially crafted URL.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
CWE: CWE-20
Published: 2026-03-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

devolutions:devolutions_server

References

https://devolutions.net/security/advisories/DEVO-2026-0005

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