CVE-2026-3204
Title: Error Message Spoofing in Devolutions Server
Input Validation Error
Proof Of Concept
No public PoC currently indexed for CVE-2026-3204.
CWE Category
CWE-20
Published Date
Mar 03, 2026
Modified Date
Mar 05, 2026
Exploit Status
Not Found
Score
9.8
CVSS v
Exploit Probability (EPSS)
0.08%
Vulnerability Summary
CVE-2026-3204: 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.
Impacted Vendors
Reference Links
CVSS v3.1
Source Entity
134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity
CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Associated Attack Patterns (CAPEC)
Total: PatternsNo specific attack patterns mapped.
Likelihood
Severity
Page /
CVE-2026-3204 Exploits & PoCs (Proof Of Concept)
No public PoCs found in our database for this CVE.
MODIFIED
Vulnerability data updated via NVD.
MODIFIED
Vulnerability data updated via NVD.
MODIFIED
Vulnerability data updated via NVD.
MODIFIED
Vulnerability data updated via NVD.
MODIFIED
Vulnerability data updated via NVD.
MODIFIED
Vulnerability data updated via NVD.
MODIFIED
Vulnerability data updated via NVD.
Attack Vector Matrix
Access Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
CVSS Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Stack
No specific products linked.