What is CVE-2026-9590?

CVE-2026-9590 is a medium-severity vulnerability in Devolutions Server, classified under Improper Access Control. CVSS score: 5.3/10. Published 2026-06-02.

How severe is CVE-2026-9590?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Devolutions Server

CVE-2026-9590

Improper access control in the permission validation component in Devolutions Server 2026.1.19 and earlier allows an authenticated user with entry edit privileges to modify asset information without the required permission.

Published 2026-06-02 · last modified 2026-07-22.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (19.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Devolutions Server
Devolutions Server — versions 0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

devolutions.net/security/advisories/DEVO-2026-0014/ (Vendor Advisory)

Frequently asked questions

What is CVE-2026-9590?: CVE-2026-9590 is a medium-severity vulnerability in Devolutions Server, classified under Improper Access Control. CVSS score: 5.3/10. Published 2026-06-02.
How severe is CVE-2026-9590?: Medium severity. CVSS v3 base score is 5.3 out of 10.