CVE-2026-3204

critical · 9.8

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.

9.8

CVSS

0.5%

EPSS (exploit prob.)

44th

EPSS percentile

2026-03-03

Published

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

Weaknesses

CWE-20

Affected products

Vendor	Product	Affected versions
devolutions	devolutions_server	<= 2025.3.16.0

Check a specific version with /api/v1/cve/match.

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-3204