What is CVE-2023-6264?

CVE-2023-6264 is a medium-severity vulnerability in Devolutions Server, classified under Information Disclosure. CVSS score: 5.3/10. Published 2023-11-22.

How severe is CVE-2023-6264?

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

Information disclosure in Devolutions Server

CVE-2023-6264

Information leak in Content-Security-Policy header in Devolutions Server 2023.3.7.0 allows an unauthenticated attacker to list the configured Devolutions Gateways endpoints.

Vulnerability class: Information Disclosure

Published 2023-11-22 · last modified 2026-06-17.

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:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (41.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Devolutions Server
Devolutions Server — versions 0

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

devolutions.net/security/advisories/DEVO-2023-0020/ (Vendor Advisory)

Frequently asked questions

What is CVE-2023-6264?: CVE-2023-6264 is a medium-severity vulnerability in Devolutions Server, classified under Information Disclosure. CVSS score: 5.3/10. Published 2023-11-22.
How severe is CVE-2023-6264?: Medium severity. CVSS v3 base score is 5.3 out of 10.